Heyman returning to work with Punk wasn't a part-time return mark out moment. The Shield destroying The Rock, Cena, Undertaker, Hell No, Ryback, and countless other big names wasn't a part-time return mark out moment. Don't just mix mark out moments to big name returns that WWE can afford...
Look at this summer, we have: Daniel Bryan push, potential Shield vs Undertaker feud, Heyman & Axel vs The McMahons and HHH, potential Brock Lesnar vs CM Punk feud. What do we have to look forward to in TNA? As I said, they're more consistent, but what WWE does right tends to eclipse what TNA does right.
Edit: Forgot about the Wyatt family, and the other huge talents in NXT to get called up.