Hot take; the nfl is ridiculous- stallworth killed someone and missed the same amount of time.
There is also a lot we are not privy to in this case, and I would be interested to know the exact details of his betting behavior. In particular, what led the judge to rule the initial injunction (as part of the decision, he indicated that he had a chance to win the case).
Most of what is discussed seems to be his behavior at Indiana while a red shirt (agreed that it bad to bet on your team, but he had no material impact on the games in which he did bet). It also looks like he stopped betting with games involving Indiana two weeks before he saw the field. There also seems to be no indication that he bet on Cincy at all while playing.
ESPN article describing Indiana betting behavior.