Discord groups and hc during fights

I know it is a very difficult topic and not easy to solve but large groups destroy the game experience. But the worse thing imo is that you already start an unbalance fight against many dinos (solo), then your better game cause them damage and you can actually manage to kill 1 or 2 guys but before the fight ends, they are able to come back and even switch dinos. I think it is very difficult to solve but that's not fair at all, I think once you die in a fight if you come back to the same fight you should not be able to engage again until it is over or a certain amount of time pass, maybe being able to track if the guy being attacked is still alive and fighting or just by time, Idk. Or at least if that's too much of a restriction, maybe not allow him to switch dinos during a fair amount of time or if he really wants to do that, he is forced to change the server.