I don't see why the TB president shouldn't make minor changes that do not affect the intention of the motion - such as fixing typos - besides if anyone thinks the TB President as abusing their position they can complain to the Community Director.

Personally I can't really see the point of this. Common sense dictates that typos need to be fixed and that fixing them doesn't change the motion. And if a motion is badly written/wrong it should be withdrawn or voted down. Maybe what is needed is a way of rejecting motions which haven't been properly written?