You may hate on one tricks all you like, the fact of the matter is that they are significant part of the population and screwing them over will either make them toxic, leave or get banned. It is not very smart decision to outright remove a big chunck of the population with game rules when the game is already bleeding players.
The smart suggestion here would be to make a ranked mode where people can OT to their hearts content without bothering the other players, that why OT’s leave people alone and the regular players leave OT’s alone.