The main misunderstanding I see regarding the happy ending is that most proponents would like the CHOICE for a happy ending. They aren't demanding that a happy ending is necessary, nor the only problem that they want to see addressed, but given that ME1 and ME2 set precedent, an option for a happy ending having done EVERYTHING right, i.e. having an absurdly high galaxy readiness stat (lol, not like it's used for anything else atm), the choice remains.
The poll on BSN is rather limiting atm, and possibly misleading. It's the only real poll of its kind there that people seem to be looking at, where I know others regarding choice, no change, abc endings, etc.. have also been addressed.