This is not a fair take. To know enough about something like a different religion is not something you just go fix. It's not like reading the Wikipedia page on

This is not a fair take. To know enough about something like a different religion is not something you just go fix. It's not like reading the Wikipedia page on Taoism will give me the cultural context to evaluate how a joke about Taoism will make people feel. Give how often otherwise smart people make insensitive remarks about classes of people they should be familiar with (at least in the US, like women, native Americans, Mexicans, etc) I suspect "fixing it" is harder that you realize and an easier way is to simply ask (which I did).