Two things:
1. I think Kraft read the tea leaves from the other owners and realized that the Al Davis outlaw lifestyle was not going to work for him. That he is a reconciliation kind of guy and figured that appealing and possibly taking the NFL to court was just going to isolate the franchise even further than we already are. He either had to appease us or everybody else and chose everybody else simply because it was easier. It suppose it's easy for all of us to say that since we are hated by everybody we might as well go full Monty and go down swinging, but Bob is too old and tired to spend the rest of his working life as a pariah.
Was it weakness or a form of strength? To try and say something positive, maybe it was actually harder to turn his back on his fans wishes for dignity and fairness than it would have been to send lawyers, guns and money into the fray.
2. I can't say whether this was some sort of backroom trade-off for a favorable resolution of Brady's appeal, but I wouldn't be shocked. It's going to be real interesting to see how Tom proceeds now that his owner has, in effect, left him hanging.
I can't see Brady going Broken Arrow now. They have always been partners in a cohesive unit and for Brady to fully commit to a process to which his partner doesn't have the stomach for seems unlikely at best.
Brady knows he has a couple of years left and they've had a good run together. A court trial, no matter how justified, would undoubtedly serve to drive a wedge between them and be a long, protracted process that will bring (even) more negative attention to the organization.
The most logical scenario is Goodell cuts the suspension in half in recognition that he'd lose a court case and because Kraft offered the olive branch. A compromise is thereby reached that will allow everybody (but us) at least some measure of solace. Goodell shows that he's tough, but benevolent (I choked typing that), Kraft shows his peers that he's till a team player and Brady gets two games back.
And we always have the option of walking away if it's too much to deal with.
I won't be doing that, but I'll never forget this pork job.