Jay Wilson has been relentlessly bashed for turning D3 into WoW and bringing WoW features into Diablo 3, and now the irony is that he's working on WoW. The fact is however, that WoW is, for the most part, a superbly well-designed game. The game systems are logical, sensible, effective at achieving the design goals, and the design goals are usually nicely aligned with fun. Therefore, there's
nothing wrong with copying WoW. The alternative of copying
D2's terrible game design would be far worse. WoW's game design is awesome, and presumably WoW players realize this fact, while D3 players
prefer convoluted and unintuitive gimmicks and have a blind and seething hatred of anything associated with WoW. So perhaps, people will realize this now that he's credited in WoD.
Jay Wilson did almost everything right in D3. But he got 1 critical thing wrong: the RMAH. He
ruined and destroyed D3 by turning the game into a pointless, pay-to-win, share market simulator, where you literally can buy the best gear. That's equivalent to being able to legitimately buy heroic raid loot with real money. So the haters are also right that Jay Wilson utterly wrecked D3 to the point that it was literally a stinking piece of utter shit not worth anyone's time or money. A further irony is that many WoW players support this and support buying gold with real money (see
here,
here and high support for the Guardian Cub).
So Jay Wilson's involvement in WoW is a funny thing. Take a moment to reexamine what you think of WoW and D3.