See this from JDB: https://moguls.myfootballnow.com/community/1/5665?page=1#34137

In the history of our league, we have only ever had one rollback, so I'm hoping this won't be an issue. We also had the contentious "Chuck Farr Trade." But basically, there won't be any trade rollbacks (even if everyone thinks a trade is unfair) or rollbacks for CPU drops of star players. Be advised going forward.

It is just like in a real life situation. We can only live in the present. I am against any rollbacks under any situation. Sometimes life ain't fair.