Heck I'm still trying to understand how the writers thought that these endings would fly at all.
On some level, I can understand how some people might like a "bittersweet" ending with some sort of sweeping change to the galaxy. But I can't fathom how Bioware thought that should be the only possible outcome.
And many of those who do like the results of the ending seem to admit that the endings themselves were poorly executed, both before and after EC.
Definitely poorly executed. I see what the outcomes are meant to be and like those scenarios for the most part, but the story does an atrocious job of bringing them home to me. The big is one is using the antagonist as the mouthpiece for explaining our options, combined with the fact that we must choose one of these options or let everyone die. By story conventions that means, as one article put it, that the antagonist's values are ascendant, and that means we lose, no matter how objectively positive the outcome is. It's not rational, but it's how stories work, and it takes immense mental effort to get around it. The same options for the final choice, presented by someone else and enacted with no help from the antagonist, would still be extremely uncomfortable to some, but they wouldn't make you feel that you lost.
I'm something of a consequentialist, more concerned with outcomes than methods, so I'm set up to be less susceptible to this kind of reaction than most. Maybe that's why I could wrap my mind around them more easily, but I still felt its emotional impact. I can fully understand anyone who feels unable to make their peace with it, though I think some emotional distance is appropriate after two years. Being obsessive about it for so long is unhealthy.