Or they just liked Arabia because it’s open and not booming like BF.
I disagree. At least for higher levels if you’re good on one map you can still do decent on another. In your case, I can see why getting slaughtered every game is not fun at all. Surely after a few games however, you’d lose Elo and get some practice, meaning the games would be fairer.
Ok so what if there was a map pool and 1v1 Arabia random civ? That way the people who enjoy open maps and civ variety can get it, and those who like map variety can also get it. I think this solution would make almost everyone happy, so would be best for the game.