Tough to use this as an example, because he was a loser in AWA. Not a loser in the sense that he sucked, but in the sense that he never did beat Bockwinkel for the title. Still, he had popularity in that area, but wrestling wasn't national yet so the New York WWF fans didn't know a ton about him. It's way different than today.
Slightly better example but still iffy. Austin wasn't a star in WCW by any means. By the time Hogan got there, it was all about him, and before that it was Flair and Sting. Austin was a midcarder at best, but was told by Bischoff that he'd never be a star because nothing about him is marketable. What a genius that man must be........hehe. Still, Austin would compare well to Anderson, and he was a midcarder in WWE but got a bigger push in TNA. Better, but still not a great comparison.
The Rock and John Cena are the only "home grown" talents WWE was 100% responsible for. Did Hogan and Austin become superstars in WWE/F? Yes, but they weren't "homegrown" like you are insinuating at least not in the vein of Rock and Austin.
In fairness, it's different now to have a "homegrown" star from WWE because they have their own minor league system to groom talent. TNA does not. Thus, you can teach these guys the business while under contract with you, but not have them on TV. That's a HUGE advantage. Guys like Cena, Orton, Batista, Lesnar, etc. all got signed young, were taught to wrestle in developmental, were brought up when ready, and earned their keep over time. They didn't have to travel the world like the wrestlers of old. Some like this system, others do not, However, it's a stupid thing to base a liking of somebody on.
TNA is already building their "own" superstars most notably, their World Heavyweight Champion Mr. Anderson who's "asshole" gimmick in TNA is nothing like his loud mouth gimmick in WWE, minus the microphone from the sky.
Here's where you start to go astray. I agree that putting Anderson over as champion was fine, but the asshole gimmick is different than his loudmouth gimmick? How exactly? He wears the same kind of attire, same hair, same microphone, still does his own intro and still stutters more than Matt Morgan did on purpose in WWE. He's literally the exact same performer. That's not a terrible thing as people seem to like him, but literally the only thing different about him is that he had a good catchphrase that turned into one word for some reason. That's literally the only difference. I know guys are usually repackaged when they go to a new company, but in his case, they felt they would just run with it. It's fine, but don't argue that he's any different now, because he's not. Even his music is pretty much the same. That said, I'll give TNA the benefit of the doubt here for pushing him because they finally did it with someone who might have a future longer than 2 years. That's seen as a very positive step by a lot of people.
Aside from him, there's the longest reigning World Heavyweight Champion in company history, AJ Styles to look at as well.
Someone needs to explain this to me better this time around, because frankly, I still don't get it other than the pride of being able to say "we did it first", what exactly is the value of "homegrown"?
I think the problem people have with Styles is that this regime (Hogan and Bischoff) have taken Styles and cast him aside, at least for now. They had this talented guy, the PWI wrestler of the year who was very popular, and they felt it wasn't good enough. First, they stuck him with Flair and made Flair the focus over AJ. Then, he dropped the belt on Impact (not even a PPV) to Rob Van Dam. After that, he was barely in the running for the title, and eventually dropped to the midcard. He now is, at best, the 6th most important person in his own stable and thus, quite an afterthought. I think that's the issue with AJ. People like him a lot, but the misconception is that since he has only competed in TNA (I know he had a cup of coffee in WCW and a couple of tryouts with WWE but you know what I mean) that he can't be a marketable star. If pushed right, you could be. He's good looking enough and wrestles well, thus can certainly handle the top of the card.
I agree in the sense that you don't have to "homegrow" all your stars, but you do have to build new ones. You and I both know that WCW struggled in that department and that is a significant problem in the way they ran their company. Guys do have shelf lives and will only have immense popularity for short periods of time, thus you have to continue to build new stars. I think the isssue some have with TNA is that instead of building up new stars like Roode, maybe AJ, maybe Lethal, maybe Crimson, etc, is that every time a guy comes in that had a name in WCW or WWE, he passes them up right away. Not for nothing, but Matt Hardy is now near the top of the card. You knew that would piss people off. That's the issue more than anything. Bischoff sees it as "these guys made money before and can make us money". The problem is, you are writing off EVERYBODY in TNA that didn't compete long in WWE by saying that, because you are saying that since they didn't make money elsewhere, they are incapable. That couldn't be farther from the truth. Now, if Matt Hardy was used to put over Crimson and make him a star, people probably wouldn't have a problem with that because Hardy was a midcarder in WWE and going over him at least means something.
As far as a mainstream superstar, as in a guy who will cross over and do commercials and things, that might be tough in the current regime. As long as the show is being booked where nobody can be "the true face", it's hard to take a guy and make him "the guy". If they could, candidates could be AJ, Morgan, MAYBE Anderson but I don't think so, and that's about it. Mainstream guys need to be good looking, have charm, and build up fame so that people outside wrestling give a shit. Morgan has done a movie so that could help. Of anyone, he might be the guy that could take those reigns. We won't know until he gets a shot at being THE guy in the company, which may never come. As of now, it's a heel run company, which never leads to good press outside wrestling. Just ask WWE circa 2000.