Only way to get banned in any mod is to use it vs other players that will report you. If you use it for campaign stuff you should be fine. Just be aware that it has a few bugs.
1. If your entire team is slowed, then you will never be able to finish the match cause your perma-locked and your turn meter will never move.
2. It won't keep your game login loaded. You will have to uninstall everything, reinstall original game, then install this patch over it every single time you want to play.
Outside of that, it works fine.