I am well aware that Gaijin has argued that allowing people to ban maps would leave games empty and end up with queue times increasing and all that, but frankly speaking this is entirely their own fault for making awful maps.
People will still leave maps if they suck, because eating that 10 minute lock-out is still better than spending that time on a dogshit map.
Either make fewer truly unplayably terrible maps or let us actively choose which ones we want to play.