Usually when there's a problem in WoW/SC2, it's quickly rectified (if it's an actual issue and not just people here and there crying). Sometimes it takes a while for it to be fully fixed, but changes I've seen are much swifter than from the D3 dev team.
Nearly every change recently made by the D3 dev team has been beyond controversial or way past the expected time, and it leads me to think they are incredibly inexperienced compared to the other game divisions.
Is this valid? Is the team in over their heads trying to please an extremely aggressive AAA fanbase?
It honestly boggles my mind that a game that's likely been in development since like.... 2005/2006 has so many glaring issues, that are only going to begin to be fixed in the expansion. I don't want to turn this into a QQ fest about every issue in D3 but really, they seem like they are clueless compared to the quality developers working on WoW.
And certainly extra clueless when compared to the Tier 1 team working on Titan, for sure.