That's mostly because it doesn't involve the letters "F", "C", or "W."
Or it's because I have absolutely no interest in any indie fed, full stop.
That's really funny that you mention the grenade move, because Alex Riley, one of your precious FCW guys, just started ripping that off.
One problem with that. I think Alex Riley sucks, can't stand the fucker. I've been calling him bad since he was on NXT. And hell I'll the guys in FCW shit. Which the vast, VAST majority of them are. But the 10 or so who aren't shit are actually pretty damn good, and with a couple of exceptions have years of experience from outside of FCW. So please don't try to insinuate that I am a blind mark for anyone who was trained in Tampa.
Chuck Taylor is one of the most charismatic wrestlers around today, so I highly doubt that he would have any trouble transitioning to a sports entertainment company. Ricochet would have to do more transitioning, but so did Matt Sydal, and he is a champion at the moment in WWE.
I'll take your word on both because I've plead ignorance on them already. I'll make a bold prediction that Ricochet will be doing one big flip in his matches, rather than doing a 450 senton and a 630 moonsault in the same match. See also: Evan Bourne not doing springboard 450s or moonsaults off his opponent's backs any more.
I also know that Brian Cage-Taylor (aka Kris Logan) got FE'd while in FCW for some reason. Which is a shame because I thought he was damned good. Never heard him speak, but he was fun to watch in the ring. He was pretty darn over too. Completely irrelevent to what we're talking about but this is in the spam sections, so who gives a fuck?
Which is why Danielson and Low-Ki changed their movesets so much.
Kaval is the exception that proves the rule (though I found him borderline impossible to watch in the ring before FCW, but that's personal opinion). DBD follows the "use the same moves in every match" rule. Look at a Daniel Bryan match and you'll see without fail that he goes for the same spots in all his matches (tiger wall flip, missile dropkick off the ropes, missile dropkick in the corner, tiger knee and teasing the LeBell lock before the finish). If you watch one of Rollins' FCW matches it's the same thing (springboard clothesline, O'Connor roll into the Paroxysm, back kick followed up with an "advanced curbstomp" and finish with the Avada Kadavra (the low angle superkick)). All of the moves I listed were recalled off the top of my head, so I may have messed a few of their signatures, but the point remains.
If guys can prove they can do high-risk or non-WWE style moves safely and consistently they can get a pass like Bourne with the Shooting Star Press and your gay fantasy Justin Gabriel with the 450.
It's not the fact that they have super cool amazing moves that they can do safely. It's that you build up to that spectacular move, and prime the crowd to react before you hit it. Which fails if you're going spectacular moves right from the bell and has the added drawback of desensitising the crowd so you've got to top it. It's one thing to perform the move, it's another to make the crowd give a shit about it.
Or to put it another way, anyone can do a bloody hardcore match but there's only one Mick Foley. He may do tamer stuff than you could see somewhere on the indies but more people give a shit about him going through a table than Yardtards #1 and #2 going through a stack of light tubes onto a concrete floor.