Where are you getting that from, that they're ok with CSAM?
I think they've been clear that they want to follow the law.
Every image gen provider struggles with this. I worked for an image gen app years before it became popular (Wombo dream) - it's a hard problem to solve, there are sick people out there.
I believe it's from the reported usage of it to undress children(making realistic images that are pretty much CSAM or CSAM-like), which was allowed in the public version of grok and seen in twitter, now it's behind grok pro but still able to generate such. That's from memory so some aspects may be wrong.
I don't think that's true anymore