Hardly. This is getting continuing press coverage that would cease if an explanation were to be given that seemed plausible in some of the cases where their stock explanation doesn't seem to fit.
No major network is running any story, no apology or explanation is going to stop the bulk of bloggers and forum pundits from claiming the sky is falling. MS doing the right things behind the scenes has always been their best course of action, alas that means we don't get to know what they are doing, but that is the right way to go about it.