

It’s reviewed poorly because it just came out and is missing a lot of features (read DLCs) and bug fixes the previous civs already have. That and there is no British civ yet (unless they’ve added them recently-ish).
Didn’t play much of Humankind, but from what I’ve heard, it was a great concept, but it lacked a lot of polish and got a little overhyped when it came out as the ‘Civilization killer’.
EU Commission and Council are indeed not elected directly, but the Parliement who propose and vote laws is. The way it works is similar to a parlementary republic (where coalitions of parties that includes >50% of MEPs make a governement together).
It’s as democratic as democratic gets on that scale.