I know we've had this discussion some time ago, and usually, I agree that developers should get the most freedom they can get on how and with what tradeoffs they develop their games....
- but in this case, I do think a mandatory resolution and framerate target would generally be a good thing, not only for consumers, but developers themselves too.
Why? Because on many levels, visuals and as a result, screenshots (because they portray nicely how impressive your game looks) sell games. The problem I see is that 30fps is often looked at as the preferable tradeoff because it's good enough for the majority of [mainstream] gamers. If all developers ever targeted 30fps as the ultimate benchmark, who would dare target 60fps if they're effectively throwing away more than twice the amount of resources to get there? The result usually is an inferior looking game, which is bad for PR. If hardware makers ensured a framerate target, everyone would play by the same rules - meaning that developers could worry more about getting the most bang for buck every 1/60th of a second or simply concentrate more on other areas of their games because the [visual] difference between games would probably be smaller than if you have some games targeting 30 and fewer 60.
In other words, if developers were forced to target 60, we wouldn't be discussing in some topics like the DriveClub one, how much worse the game would look if the developer had done this or that - we'd simply be appreciating what they got out of the hardware.
Obviously, this would also mean that some games, like perhaps very slow paced games that don't benefit a high framerate would be effectively wasting some resources on a high framerate... but I do think that there are only a few of them. On the whole, I'm pretty much convinced that any game outthere that is already great at 30fps, would play quite a bit better at 60fps, even if some find this hard to believe.
Tomb Raider: Definite Edition demonstrates this nicely IMO. So does TLoU. Great great games on the PS3, but from a gameplay perspective, just better and more fluid at double framerate.
Perhaps the dream is that someday, hardware will offer so much performance and we'll be stuck at perhaps 4K resolutions that developers will find their ways back into targeting more 60fps games. The PS2 seemed to be one of those consoles - I think it was the only console I ever owned where the majority of games I played were actually at 60fps.