I can't believe you guys are even entertaining this rumor considering they are already confirming specs on games.
If this rumor were true why would they come out Yesterday and confirm this kind of stuff.
It just doesn't logically fit.
I mean really do you guys honestly think the in-engine trailer we saw is really possible on the hardware your entertaining at 1080p and 60 fps?
Sure it does. They want to do their best to impress people as much as possible. They can "officially confirm" whatever they want right now. As it happens, they haven't confirmed the clock speeds (and even if they had, it would still mean very little at this point). You're basing your entire argument on the fact that the in-engine graphics of a single game looked pretty, and that they're claiming it will run at a native 1080p/60fps.
All they have to do later, when they "officially confirm" something else, is claim that it was the truth at the time. There are other methods they can use to still hit the 1080p/60fps mark, and it will still look better than anything that's been released this generation.
Official confirmations of game specs right now don't mean a lot when they're launch titles for new hardware. All they are is official confirmation of the targeted specs that they believe they can deliver based on the dev kit hardware they're currently working with. Until the dev kit has been finalized (which it hasn't yet), things can change.
Ultimately, this specific issue (whether the clock speed might get reduced slightly or not) is not even really all that important, and I doubt many people see it as anything more than an overall indication of a continuing trend of bad news. Either way the games will look great, and either way multi-platform titles will still look better on the PS4 (and even better on the PC).