i've (accidentally) joined several rigged games before; most people who rig games are level 50+.
also, big difference between rigging and multi-accounting.
also, I was banned (for 3 days) for creating that game. Officially, Fizzer informed me that (although not technically wrong) creating games like that hurts noobs (like you) who don't always check the settings>custom scenario, which takes less than 30 seconds and is really easy to do!
ironically, the game ur pointing out, i didnt create that scenario, i borrowed it from someone else.
Pointing out that something which obviously prevents a game being a fair contest of skill as "technically not cheating" is never a good defense.
Sure, maybe no one thought of making a law to prevent you from carrying out some crime, but that doesn't make the action *right*, or defensible. "Well, technically speaking, I didn't violate any rule, wink-wink," doesn't fly as a defense in any other field of human relations. We hate when our politicians pull this trick for a very good reason.
At the very least, if you plan to make such game-breaking alliances a part of the game, you should inform the other players that it's that kind of game, so they know what they're getting into.
(But, as many people have pointed out, there is possibly very real cheating happening here, as well.)