@busterlark the bishop is often misplaced on d2 in QP openings. The bogo indian takes this to an extreme, and I suppose after Bd2 black can play Nf6, arguing that the bishop on d2 justifies the extra tempo.
In the case of Bg5 simply h6. I think that black can play g5 after Bh4, which is probably still better for white, though.
Mmmmm, good point re Bogo-Indian positions. Interesting idea, and makes sense!
I was going to post a line in response to Bg5/h6, but Stil1 beat me to it!
@Stil1 I think black has an improvement over 2...h6.