Religious people are not all fanatics, or all opposed to the self actualization of others, so adopting symbology that they would find abhorrent does not win favors or friends. In fact, religious zealots get some sort of existential validation by the existence of Church of Satan etc. I think choosing a symbol associated with destructive ideas is not good marketing if you’re aiming for people who aren’t angsty about religion, or biased against people of faith. I don’t think it’s necessarily bad to let people be themselves, including have faith. The problem is that we’ve forgotten that separation of faith and state is needed for civil discourse and social harmony.