User blog comment:Mexican215/So who was satisfied with the last battle against the Reapers?/@comment-4967682-20130213023320/@comment-2250460-20130214020427

The problem you're having is you're things that you don't like and think are out of character, and taking things that are simply unexplained, and calling them plotholes.

In my general experience, plotholes are things that can't be explained story-wise and that screw up the flow of the story, that is different from simply unexplained things.