If you actually watch the documentary they also talk about 2 pedophiles who were on his set at nick and convicted during that time and one pedophile who was convicted from a disney set.
It’s less about Dan schneider specifically (although he does seem to have a lot of unprofessional, sexist, and inappropriate mannerisms) and more about the need to increase protections for the physical and mental well being of child actors as a whole
If you are in the US you should call 988. They will connect you with someone who is specially trained to help you through times like these