Quote Originally Posted by Douglas View Post
The Reapers are the only AIs that Shepard has encountered that have been violent without provocation. The Star Child's goal and logic is based on millions of years of history, against which the current cycle is one tiny blip on the record.
But the story is about Shepard and the current cycle. If the issue didn't crop up in the current cycle, if Shepard has seen no evidence of it, than, narratively speaking, it's not an issue.