This has been said multiple times, but it
is his server.
However I must say that what you've done was wrong, unless you were under some conditions such as
my team had something like 2 players and the enemy team had about 10
and by using the phrase "something like" I start to think that you're exaggerating, and you had about half as many team members. Either way, resorting to inbalancing the power in the game (which I just loving lost again) isn't the right way to solve a problem, you should've moved some people by random (so it doesn't look like you're moving the best players) to make it even.
Then again, it is your server, but just some advice so topics like this don't come up (if you even care about them, of course).