"AI safety" is not a cult by that definition any more than Christianity or Islam. There's some subgroups that are a bit more cultist, and that's the same in Christianity etc

Same with Falun Dafa, have a friend who is a practitioner, it's completely normal to have friends outside of community (tons of his friends are), no one tries to convert anyone, and between his business and other stuff the time he spends on the practice is really not that much