Yes, but I replied to 10..h5 too: 11.a3 and then h4. White doesn't need counterplay since he has space advantage in the center and on the kingside. But it's true, if Black manages to play leading to some final, Black will be better...but how to do this ?

If Black play 9...f6 (instead of 9..Bb4?!+) one original way for White is Shamkovich's gambit: 10.Nc3!? and 10...fxe5 11.dxe5 Be7 (Minev evaluates the line as risky for Black is gambit is accepted . Example: Kuijf-Allen,Dublin 1977) 12.oo oo 13.Re1 Bc5!? 14.Na4 Qc7

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 Qb6 8.Nf3 cxd4 9.cxd4 Bb4+ 
Now if:
           -  10.Bd2 Bxd2+ 11.Qxd2 Qb4, and after the queen exchange, f6 (if it takes we get a secure passed pawn otherwise we take with the g-pawn) white has an isolated pawn with the queens off the board. And as soon as black stabilizes their position they get the advantage. Otherwise
           -  10.Kf1 (I think the best) something like 10..h5 (as it provokes g4 and creates threats if white try to "castle" with g3, Kg2) and black has an active play on the queenside and nothing to be afraid of at the king side.