I didn't see Big E's single run, but based on his tag stuff he's just as one dimensional move wise as Roman or any other bigger wrestler. He's got a lot more charisma and fans love him, but he aint exactly being diverse. Then again it's hard to be diverse in your move set when every damn match you're in is a 82 man tag match where everyone is just doing spots.
They're far too over to do that now. Though they did do it with the Dudleyz so what do I know
Move diversity is a small, small, damn small part of bring a successful pro wrestler though. Peak Austin: "I got three moves, kid"
Big E does plenty to be awesome on his own in the ring.