It's an absurd suggestion, and embarrassing how many people here are calling for it. Bob Kraft would open himself up to so much legal liability, he would risk losing the team. If he forfeited all 4 games, he could be sued for hundreds of millions of dollars from all impacted parties.
I just wish the Dorito dinks would file suit. They are not public figures so they have a lower threshold. Plus, Brady would technically not be a party to the lawsuit, so he would not be subject to discovery. The NFL office would be though.