I disagree with you, I think it's an issue of them just being just bad, tbh. Even Orton I think just sounds awkward on the mic, kinda like Joe, like hes trying so hard and he has a fucking robotic monotonous voice (he was much better in Evolution when he was just cocky and seemed more confident, same with Batista). Triple H as a face is gay, even HBK. Neither of those guys were Austin or Rock and never will be. Seriously, I know you'll agree, but when you hear Edge and Jericho talk on the mic it's a tooling to anyone they're talking with or anyone in the vicinity for the remainder of the show.. the guys just sound leagues ahead of ANYONE they talk with, they're both amazing and fucking legends. Jericho did the same thing when he was face as well, just shows how good that guy is. Also, look at guys like Foley who were also the shit on the mic and complemented heels like Triple H well. Even on TNA, he still seems better than most of the guys in the WWE, I just don't think the WWE would give him time to do shit later in his career like this, which is sad because he's still damn good. Angle use to be another of whom I'd say was one of the best at the time of his debut, was absolutely amazing heel.. then he just went downhill I think slowly, dunno if it was the drugs or not but his voice changed and he started sounded like a 50+ year old Flair. =/
Oh yeah, I forgot to mention there's one guy who's always had the potential to be damn good, he flows like no other new guy on the mic and that's MVP. But too bad about what's been happening with him, I always said he'd be the closest thing to The Rock if anyone.