my feel is that white can just delay d4 indefinitely. Rb1, Nf3, O-O, maybe Qa4... of course black has no immediate problems, but white has some nagging pressure.
u r right here pawn push can be avoided for some tym by making some logical peice moves
yeah, something like that. i've also played the black side of this a few times and i didn't have fun in any game, it's not too easy to find plans for black while white didn't commit any of his center pawns.