This weirdness is caused by a few things. A lot of Gen Z is very, very prudish — of a kind and severity that hasn’t been seen since the Great Awakening in the 1730s and 1740s. This doesn’t just include “prudishness” directly related to sex, but also a deep suspicion and hatred of anyone doing something so innocuous as having fun and dancing.
And part of it is just misogyny — any time women are acting of their own volition with no men around, especially if they are having a good time, it’s seen as invalid or undesirable. This is becoming common even among Gen Z men.
Another part is that Americans in general are distrustful of anyone — man or woman — not working, not preparing to work, not doing something directly related to work, or not otherwise pointed in a direction that might be related to doing something “productive.” It’s that ol’ execrable Protestant work ethic popping up as it always does. Seeing those women enjoying themselves at a yoga dance rave (?) triggers that subconscious voice in the back of their heads that says, “Shouldn’t they be working or doing something useful?”
As for me, I think they’re cute and their awkward dancing is also cute. Good for them for having fun in the way they want to be having it. We need a whole fuckin’ lot more of that.