Right. Heated yoga sounds so nice, I feel like doing exercise or even just “doing nice things with a group” could have beneficial effects. It doesn’t mean heated yoga isn’t good, just that the takeaway could be more broad.
I found it rather unpleasant, but I only did it once. Maybe I'd get used to it. But 90 minutes of yoga is a lot when you're not used to it. (And I say that as a marathon runner who regularly exercises much longer, but different skills.)