It makes absolutely no sense in ranked pvp that players can not sit at any table they desire to sit that aren't marked as friends while friend's tables allows players to purposely craft exactly what schools they want to play on their side. As long as friends tables exist it is only fair that non-friends tables should be able to be joined by anyone wishing to join them as long as table level limits and perhaps even rank limits are met. This makes the system more like practice pvp, but I much rather enjoy practice pvp table options more than ranked. In either case, it is unfair that friends can decide who sits at their table while non-friends tables can't decide where to sit.
I think you should stop quick entering pvp matches. They seem to just cause you trouble and they are scetchy if you want to win. Find some of your friends who will join ranked matches with you.