I'm guessing they are trying to prevent him from enrolling in classes at Miami, and therefore foreclosing his ability to transfer during the winter window. He would have to sit until the spring window and could then transfer and enroll. I'm guessing this is purely a deterrent to other players on the Wisconsin football team that if you sign a NIL agreement and leave, and we want you to stay, we will do whatever we can to make your life difficult. The downside to Wisconsin of having to litigate and possibly owing damages to this kid for him missing a spring semester and practices is probably not much to them in the grand scheme of things. They see it as the cost of doing business.