I don't see the 49ers hate either. They still have the running game, but have added 3 weapons for Smith to throw too. I don't see how that's a negative.
They probably will try to go more pass orientated, but if Smith can't keep up, they just go back to last years offense. If Smith does keep up and gets better with the added weapons, their offense will be really good.
Add that to their elite defense and their poor divison, i see no reason why the 49ers won't with the NFC West.