Look dude, the problem is not that they don't talk about it. The problem is that they make people do complex exercises in a manner that significantly increases risk of rhabdo and a ton of other injuries despite knowing about those risks. This is irresponsible at best and grossly negligent at worst.
There is a way to lift weights in a safe and responsible manner. Crossfit not only refuses to teach its clients that, but also builds and encourages a culture where injuries become badges of honor. That is what makes it a cult.
I am in no way saying that the bad behaviors described above, and you can absolutely get a cult like mindset focused around entirely the wrong thing. I would also say that I think some of the nature of the workout strategies in general may attract these kind of behaviors.