Could the black bishop go to d4 to defend the pawn? I actually found the guy's comment just now (his username is KlangenFarben and he's rated >2500)
he says "8. Qg4 Bd4 leaves White lacking in space and initiative."
It's on move 8 instead of 7 because apparently there's some a-pawn moves that I forgot about. You can find his full comment on the first page of this thread http://www.chess.com/forum/view/chess-openings/why-have-i-been-encountering-the-bowlder-attack
Why do you say that final position in the second post looks nice for black?
Well... I missed the super obvious Qg4 winning the c4 pawn heh.
But still, what counts in the opening is development and center control. I just assume black's game will be more comfortable because of these two things.
Those are the main points, but also the half open d file and bishop pair is comforting. Also comforting is white's natural development is very much non threatening. I'm imagining Nc3 Nf3 d3 Be3 I guess? Yawn :) Meanwhile all of black's developing moves come with some purpose. Nc6-d4 has a threat. Be6, Bf5 or Bd7-c6 have threats, Rc8 has a threat.
That's my blitz impression anyway, that I'd rather be black... even more I'd think black's better... but obviously that requires actual analysis not just a gut feeling