Yeah I'm not sure if you've ever been to a country that uses primarily squat toilets, but I've never seen nastier bathrooms than ones with squat toilets.
I lived in various parts of Asia for over a decade, in countries where squatters were the dominant type of toilet, and yes they look and smell nasty, but that doesn't invalidate my point which is that my skin never has to touch any of it.
Contrast this with a sitter, where even the 'clean' ones require contact with your skin.
Regarding squat toilets, their biggest benefit IMO is hygiene - your skin never touches anything.