There are by definition gonna be 2 camps... those who talk about Mark Callaway and those who don't. One side is going to survive in the business, one isn't... It's easy to talk about a Triple H or a Cena... they put their heads above the parapet... Taker never has done.
It's important to understand WHY the man is revered.. It isn't cos a "gimmick worked" or he "made Vince money" or he "had 21 wins at Mania"... those are in reality window dressing.
The only other man with the level of respect he has in the HISTORY of the WWE/F is Robert "Gorilla Monsoon" Marella... literally no one is on as high a pedestal or respected as much... those who worked with Gorillia eulogise and those who didn't wish they did. The WWE roster from the last 18 months onwards will have the same, they either got to work with Taker or didn't...they ALL would wish they could have.
Part of that is by design. Every leader MUST have a second... one who is inscrutable, respected and attracts not only loyalty but the desire to go to war for... it goes as far back as Sun Zsu or the Romans... soldiers didn't fight and win for their "Ruler" but their "Commander or General".
Mark Callaway is a guy who has "been there, fought in the trenches, won, lost and still would BLEED the company rather than show it in a bad light." How many times has he been seen in public since his loss to Brock? You can count them on one hand and he has made SURE to show that either a) he is selling the beatdown or b) was legit about passing the torch to Brock. What he then does with it is not Taker's concern...
Gorilla was the same... Vince made the call to take him out the ring and make him the PBP guy...so he applied himself, he didn't fight it... and he became GREAT at it... not through talent, but cos he "got" what was required and showed that lesson to others. Callaway has been a master of that for many years, when he was needed to fight "giant of the quarter" he did...when he had to step up and learn to Main Event in 96/97 he did... when he had to sell Mania in what amounted to veterans matches, he did.
Anyone who works or has worked in WWE in the last 15 years at least sees this, gets it and either couldn't or were not able to do better... Wrestler's Court is a misnomer, from reading Jericho's latest book some of Vince's ideas of "punishment" are so far out of whack that a guy like Taker becomes invaluable... perspective...fairness and forgivness... look at guys like Miz... banished for eating chicken over a bag, not allowed to even MIX with the "boys" for over 6 months, but still got his time in the sun as the Champ and still got his Mania main event. That's not cos Vince or Cena or anyone else "stood up for him" it's cos Taker said "he did his time, he's cool now, and he's earned it... I trust him to follow my match..." The worst you can say is that after a time he "stepped down" and let poor choices like JBL take his place, who are weaker men, compelled more to bullying to compensate for the respect they didn't have.
The only possible guys to slate him are either those who don't know him, got on his bad side or who just don't understand the mentality. Been reading Jericho's latest book and the chapter on the only "pin" he has over Taker, and the circumstances leading to it cement the respect... The Pyro guy? not so lucky... or was he? He got fired, not destroyed by Taker as he clearly could have been... what COULD have happened to that man is downright scary...but Taker went out with severe burns and still put Jericho over for the title, as was the plan, despite Chris wanting to change to help him...and you can believe if he'd been overrulled, Mark Callaway would have kicked the living shit out of Jericho, the Ref and Vince if it had have come from him, all he did say was "Get him out of the building, I don't EVER want to see him..." The pyro guy probably still worked etc... but he got a pass, that's for sure.
That's why no one speaks ill of Taker... it's easy to "fear" him, impossible not to respect and very hard to find much fault other than hanging on that 3 or 4 years too long. If he has done "bad" backstage or in the biz... the tales are not out there... he very much seems to be the island in the middle of the crazy sea of wrestling.