The crazy thing is that this runs the risk, as Mark Brunell articulated, of tainting his legacy, instead of heaping more coals on the head of his coach who has taken by and large all of the negativity that's associated with the Pats. A coach that seemed to throw his qb under the bus in his press conference on the point.
If you get caught cheating, no matter how you spin it, it skews perception. Even more so given the larger jaundiced eye being turned on New England since spy-gate. This could finally reach him, especially given he has publicly stated his preference for (meaning he can tell) underinflated footballs.
And if it does it would be a tragedy, because while anyone who says an argument should be made that he's the best ever is either high or or a homer, he's still among the top qbs of his and any generation. And he'd have been that regardless. How high on that list? That's where this sort of thing, given his reputation rides on games decided by fairly slim margins, can impact.
I doubt Belichick threw #12 under any bus--the two most definitely spoke before this presser. And Brady's own was moved up from tomorrow to this afternoon. I'm sure as usual they're working in tandem.
And yes, this is aggravating from the whole legacy perspective (Brady himself used that word after the championship game, publicly acknowledging what everyone else assumed he was well aware of). So far he's always been able to stay above the fray. His intelligence, work ethic, and will to win have never once been questioned by anybody, even by fans and players who hate his guts. It'd take the mother of all revelations for that to change.