note this is not a "stab" at you or a "criticism" buuuuut.
keep in mind forum goers make up a very very veeerrrry small % of the people that buy and play BioWare games.
Of course they're going to lose fans, but those fans are likely already gone after ME3 (or prior)
worst case is people will just be more careful about the games from BioWare they buy.
Case in point. I was a huuuge BioWare fan since Baldur's Gate 1/MDK....for years if BioWare put it out, I bought it day one without looking at reviews. Which is silly of course.
However as time went on it was Dragon Age 2 that "broke the camels back" for me. I no longer buy BioWare games day one and always wait for reviews (the ONE exception was ME3) Now I don't hate the endings as much as a lot seem too but I'm still weary about BioWare anymore due to their drop in quality...they still make some great games but they are NOT the company they used to be.
Point being you can't go by the forums as an accurate account. Because it's only a small % and, by nature, forums are kinda negative...because that's how people vent. MMO forums (like SWTOR) being the worst kind....those happy just play the games and very few actually go to the forums...
So no I don't think they are under any pressure other than the norm put on them by EA to make quota's.