More likely, what really pushed the Doctors out was not the whining, but the drop in quality due to EA's mentality of "get it out the door" instead of polishing the game. BioWare's quality has been dropping just as Blizzard's quality has been dropping since the 800 lb Gorillas (EA and Activision) entered the picture for both. (And if you think Activision's board has no say on what's happening at Blizzard, you're being clueless, Blizzard is not autonomous from Activision no matter how much Morhaime says otherwise.) Everything now is so profit driven that game quality is diminishing (Battlefield, WoW, Dragon Age 2 compared to 1, Diablo 3, and the list goes on).
More likely, a lot of long time people in the game industry are leaving because of people like Kotick, Probst, Riccitiello, and others. The passionate people about creating games is dwindling because of the people he want profits over good game play.