if by team u mean alliance, that of course should also be more restrictive, confed resources exchanges should also be limited by antipush system. By doing this techs could still be defended by creating an ally and inviting all techs inside. At least this would put a target and would make things much more difficult. I know the difficulty of identifying multiaccounts, but I really think that we all should put effort on something that is going to end up killing the game.
I agree. They should add antipush system to confederation just like antipush in alliance. Also a cooldown for confederation, you can't send reinforcement before 12 or 24 hours after accepting confederation.
But yes, tech accounts still can make their own confederation with defenders, but I at least they can't fully abuse the system.