Crossfit is bad for most people for other reasons as well. For example, look at how they do pull-ups [1]. It's basically a fitness meme at this point - they use form that doesn't encourage general strength, just swinging around and putting pressure on the arm/shoulder joints on the way down, for the sake of increasing competition rep numbers. This seems utterly pointless unless you really care about winning Crossfit competitions [2].
No, "most people" wont do that kind of pullups in crossfit. Yes, those doing competitions are optimizing for something else (reps) than general strength. But most of those doing crossfit actually focus on the general strength.
I feel like there is Crossfit the brand and crossfit the idea of group fitness helping people be accountable, learn proper form, etc... The former is garbage, while the later can be good.
[1] https://www.youtube.com/watch?v=4PWvepZMZ7E
[2] https://www.youtube.com/watch?v=lEe-loVKOOM