I barely even play anymore, and I still think the nerf was a bad idea - not because it allows more people to beat heroics, per se, but because it further fosters the expectation that you are entitled to win. What made the WotLK heroics so dull was that it was almost impossible to lose, effectively removing all semblance of challenge from them, and as an extention, all semblance of fun. I know that wiping for hours on end can be frustrating as well, but if there is no challenge, then why do the heroics even exist? Why aren't we just automatically given our valor points each day without having to go through the motions?
See, I think the underlying problem is the dungeon finder. I know it's immensely popular for good reason, but it has also bred a rather vile disposition among many players - win fast and on the first try, or don't bother. I think there's something fundamentally wrong about the game when people complain about long queue times for dungeons, and when they finally get to enter the dungeon they just want to leave as quickly as possible.