Don't get why our victory should be lessened by the fact we were OP. Germans whined about Americans being OP during ww2? Yes they did, but that doesn't mean they were less defeated.
Ofc i wouldn't attack a single fief faction with that huge alliance, that wouldn't be fun at all.
But it's not that you were a piece of cake anyway, we needed every ally in the cohalition. If for example Bashi and Risens would've stayed out of the conflict, your friends would've helped you a lot more, and probably some big powers would've start to be interested in our lands...
We know you searched help from every possible strat faction
. So a blitzkrieg was necessary to avoid other powers to jump into the war.
Never saw somebody starting an offensive war without thinking they get good chances of winning, you guys did exactly the same with LLJK. It's just logical, that's not a tourney or a duel or a crpg balanced fight, that's strategus and it's made for Asymmetric warfare.
Battles against you were fun anyway, and you even got some advantage.You had much more gold then us apparently, we had light mail and (few)rounceys while you had kuyaks, better weapons and a lot of warhorses.
You even got some victories but now, in hindsight we can say it was all pointless against our huge awesome war machine, i got no troubles saying that