Actually I complained that my team was horrible for two lans straight and nothing happened. In fact I was put on a good team both of those times and then switched to an absolutely horrible team, both of those LANs. If you are gonna promote random teams, expect to be put on a *edited*ty team that will frustrate the crap out of you. Just like the CSS team balancer, teams will never be balanced, no matter how hard you try. The intention is sound but the method fails and frustrates many.
Someone always gets screwed.
I personally am not a believer in the ‘no crappy player left behind’ mentality but to each his own 
. (That means I don’t support attempts at balance because they always fail).
One cannot quantify that which is subjective. Skill is subjective to a large degree. You might know who the best player is but you typically have an extremely hard time in picking 5 people for 4 different teams and making sure their skill levels add up to match the other 3 teams skill levels (or whatever one wants to use to quantify it).
It is the really terrible —> average player skill levels that are impossible to determine. People get lucky, people have off days, people have on days, some are just absolutely bad at games. Balance cannot be achieved when you are basing it on skill. At the very least there will never be 4 even teams.
One cannot quantify that which is subjective.
You had a bad team last LAN. I had a bad team the two before that and nobody was willing to join my team to help me out. That is the way of the forced random selection.