You are correct, Gruden and the NFL are engaged in a legal battle. Nothing has been decided and it is very premature to make such declarative statements. The next step is in the hands of the entire panel of the Supreme Court of the State of Nevada, it may not be the last. The case revolves around whether the NFL can arbitrarily decide who they will allow to be employed by their teams. Stay tuned. apnews.com/article/gruden-nfl-lawsuit-2fd3e34a0e298b857b1b817c8fad4c77 The law matters.
They can't legally keep him out of the league. That was proven when the league paid millions of dollars in a settlement with Kaepernick.