The PC situation is unique because there are so many different possible hardware combinations, that you can't reasonably ask a developer to make sure a game runs a certain way, in all those possible combinations. They'll narrow it down, to a sample of representative machines, and optimize for that. Outside of that, then yes, the person has to come to terms with their self-imposed hardware limitations.
However, PD only has 2 machines/hardware combinations to optimize for, 3 if you want to be specific. They don't have the same excuse.
I think people are really thirsty for truly next-gen games, that will completely blow their minds, but they must realize the unique global situations around this generation's launch, and realize there will be a transition period. You'll have to wait for GT8, for the full-fat experience. They also must realize improvements are becoming evolutionary, rather than revolutionary. I think we're past the days of PS1 to PS2, and PS2 to PS3, where the latter ones made the former ones look obsolete, instead of just dated.