Well, you always have some guys who cry out and say some stuff about not being respected or treated well or even treated the way they should have been. Problem is that respect has to be earned, and although probably everyone was more than just pleased with the game up to the endings, those endings also took away most of the respect the community had for BW, considering the promises they gave the players about how and in which ways ME3 will end.
I think it is honorable that BW now wants to "clear the end up" or at least give us some ideas of what they're up to (after about 2 weeks of nothing, though...) in April. But still you have to understand that even if something is really great or truly epic in the beginning, it doesn't mean anything at all if it ends in a way no one (or only few) can understand or relate to. I already read it here somewhere: ME3 will be remembered because of its ending(s), not because of its really great gameplay or the epic story.
About being disrespecting per se: I guess BioWare was trying to bring us something epic, but it backfired. Hard. I do not think they wanted to disrespect anyone or anything at all, but nevertheless, in my opinion they did. (Mostly the players, really.) But that's, of course, debatable. As is almost everything else regarding the ends.