Air Quotes wrote...
1. Doesn't know about L2's or life as a biotic in general
Well, considering he's never been an L2 biotic or involved in biotic affairs up until ME1, not really sure why he'd know this.
2. Never is regarded as a biotic by any character (except 1 minor exception ME1)
Not sure what exactly qualifies as being 'regarded' as a biotic. Every single asari is a biotic and I don't recall everyone making a big thing about it in every scene. He's directly referred to as a biotic in a few relevant scenes, is the argument that he should have been referred to a biotic more times? Just because?
3. Never uses powers in cutscenes when it would make sense.
That is a big can of worms. He never uses *any* powers in cutscenes, not just biotic ones. He doesn't even used the correct weapon (i know, an Atlas has landed, lets pull out the Predator, easily the best thing one could have). Hell, in ME1 he runs away from Saren's big entrance when he could have easily just activated Immunity and killed him there and then. The scenes are not supposed to be perfectly true to life.
4. Can use powers in gameplay and that makes no sense.
Again, see above.