Really? I read it more as "The fans were so angry with what we did in this Universe that we have to get the hell out of dodge".
I personallly don't care what kind of outcome they would create- I really want nothing further to do with any ME3 ideas. Plus the Crucible doing something it wasn't designed to is sounding pretty close to a lot of this "ignoring ME's technological possibilities". We already had Synthesis, Control, and Destruction. I don't think a repeat of that is a good idea.
And if they really were concerned about what was done with the galaxy, they'd have taken steps to erase it, or change it, not run away form it.
I don't want anything to do with ME3's ideas either. Unfortunately, they are here to stay. And the shortsightedness of the trilogy as a whole mandated a space magic (in this case, in the form of a giant wand) to resolve the problem. ME's technological possibilities had to be ignored. But that doesn't mean we can't simply ignore it going forward. Pretend it didn't happen. Consign it to the Dork Age
Unless, of course, you're determined to stand by that mess. In which case exile is the only answer.