Not necessarily. As it happened with the PS3, if I'm not mistaken. Sony nerfed some specs in the last minute, for some reason.
So, MS could have nerfed them to keep prices low, or by other reasons.
And Kaz said they'd let MS do the first move. Haha, oh man.
The thought of MS trolling Sony to pump out the best hardware while pricing themselves out of the market is hilarious. Sony took the bait once, will they take it again? Bad on Sony, good for us gamers.
Either this actually happened, or is coincidence.