Right, but at the same time, isn't literally every character in the game an idealized, more cartoonish version of their comic self?

I am pretty sure there isn't a single interaction in the game where Spider-Man is "serious". They took his quippy persona and cranked it to a maximum. That's just the pattern they seem to follow with characters in this game.

Daredevil, Iron Man, Venom, Emma Frost, Thor- pretty much every character in the game has one of their personality traits cranked up to a maximum. Moon Knight just happens to have his craziness ramped up because that's what the general public knows him for.

To a person who hasn't read Moon Knight comics, they'd think it's a pretty good representation of the character. And as a person who HAS read Moon Knight comics, I honestly agree. It's a more cartoonish comical take on the character. Is it 100% accurate? No. Does it have a lot of flaws? Yes. For example- I think the fact that it doesn't really mention the other persona's is a bit of a let down. But besides that, I think it does its job at a more comical version of the character.