I'll put my 2 cents in since this reminds me alittle of the my experience w/ cases ladder. My experience was no experience, no one would play or give me a chance. Everyone was rude and snobish. So I gave up on cases. It wasn't till rated rooms did I start playing in competetive settings.
To make matters worse, and not entirely at the players fault (I will explain why) you have several smurfers. So a 1600 player is unknown what they are, either a heavy hitter, or a true newbie.
Now why do players smurf? I think for the most part, though there are other reasons from getting revenge to messing w/ friends, people smurf because they want to play. You get a 1750+ (in ROR wont comment for AOE) name and no one wants to play you, or it takes forever to get a game going.
I even have a name that just under 1700 but I didn't have any losses (Capt was on a hot streak) and I can't play w/ that name anymore. Amazing how paranoid people get. I have even challenged a few 1900+ players with the name and they wouldn't play till I told them who I was. Not a chance I was going to say O_Captian, they would say "Who the heck is that"?
So this is my advice, be as open and honest as possible, at the end of the night it is your ugly mug you will see in the mirror. Yes, you will get the rookies (and it can seriously imbalance the game) but think of it as getting a bad position. No one is going to think you are a bad player when it was suppose to be a 3v3 but in all reality was a 2v3.
Further, there are some that say this is just a game and winning isn't everything, well they don't understand how awful it feels to lose! LOL, seriously, its human nature to find a scapegoat, and if we have a player we can put the blame on, we lay it on thick.
However, if you did everything perfect, it is possible to win against the odds. So, consider what you could have done better on your part and take some of the blame yourself for the loss.
I reason I say this, if you land blast a newbie, the worst is bitching about him during the game, like if we didn't get Newbie_Lost_It we would have won. Or the famous, I want a rematch w/ better players.
If you do this, it takes away from the fun of the game.
Well enough ramblings.