An example could be disabled gamers complaining about controls in games - by complaining companies have actually implemented changes to help that section of the gaming community. OTH,if they just said,sigh,thats the way it is,those companies probably would have not have done a thing. After all it was not in the original vision of those companies to cater for such gamers otherwise the control options would be there. In fact even Bioware did this for ME3 for colour blind users who complained about the lack of options and that at least is something positive. So in that sense I hope Bioware takes the concerns on board.
However,some people did like the ending so of course YMMV.
I personally think people should wait a bit longer especially since it looks like there might be an additional DLC/content for the end(at least Bioware is hinting this now). This way the game can be judged more fairly.