User blog comment:Kajune/Lucifer, first son?/@comment-26992577-20160407205520/@comment-26992577-20160407210511

Hey SeraphLucifer, I had a lot of stuff to do, but I am in the holidays right now, so we might read from each other more frequently the next days.

@Blaziken rjcf

So if we can't distinguish between continuity error and retcon, how are we supposed to know that the writers didn't simply forgot about Michael ? Basically, it was just one short line. It would also be speculation to call it retcon when it could also be a continuity error and vice versa.