Han Shot First wrote...
I do agree with the OP in that a happy ending is not a necessity for good storytelling, and that a bittersweet tone was the right tone for Bioware to aim for.
Where we differ is that I don't think there was anything deep or throught provoking about the endinsg to Mass Effect 3, and that I don't think Bioware succeeded in writing a good bittersweet end to the trilogy. The original endings were a case of a good idea and bad execution.
Where I think Bioware failed in trying to write a decent bittersweet ending to the trilogy, is in making the Mass Effect universe itself a casualty. In the original endings galactic civilization collapses and the Mass Effect universe as we knew it was gone. Players had just spent an entire game rallying all the various factions to set aside differences and unite, only to have that galactic unity destroyed for millenia in the original endings. This was retconned with the High EMS versions of the EC of course, but a galactic dark age does seem to be what Bioware was initially aiming for
Most players are willing to accept some loss I think, but what they quite obviously weren't willing to accept is the universe they had come to know and love over the last five years and three games, be completely demolished with the stroke of a writer's pen.
A better way to have executed a good bittersweet ending IMO, would have been to have another Suicide Mission in the end game, except this time the Suicide Mission would be aptly named. All the surviving ME2 squadmates would join for the final push, and in even in a 'perfect' run you'd end up losing some of these squadmates, Anderson, and potentially Shepard as well. Their losses would provide the 'bitter,' but their sacrifice would help in saving galactic civilization from the Reapers. The 'sweet' would be a victory that saved that game universe we've all come to know and love. Some squadmates might die, but galactic civilization would live on.
Even though I've come to grips with the ending, I wish that your version could have been an option.
OT: I know that you push hard for everyone to accept your ending must be sad to learn anything crap, but I'm not buying, nor will I ever. I have no problem with there being the sad endings and as I said above I've come to terms with it by now. I think most people only expected there would be different versions of the endings with different outcomes. A so called "happy" ending, a "bittersweet" ending and a "grim-dark" ending. If you don't agree with that, that's all well and good. Just agree to disagree.