I was searching for an alternative and landed on this Stack Exchange question. There are a few good suggestions there.
But I don't have enough reputation on that site to answer. 🤷
TL;DR, a possible alternative is "shibboleth".
Expecting Kubernetes to solve all your problems is a common devops shibboleth.
or
The so-called "Unix philosophy" is a shibboleth that deserves reexamination.
Wikipedia entry for Shibboleth
The usage is of course different. Cargo cult is something that someone can be a member of, and a shibboleth is, precisely, a NOUN that refers to the tradition one actually follows. But whatever, it's English. Use your imagination.
Oh amazing. Thank you. I didn't realise you need rep to answer a question.