This idea of calling “faith” schools, superstition schools is a really good one. And you can take it further and substitute “superstition” for many other uses of the word “faith.
For example, I just read a news report that mentioned David Kuo who is apparently the “Deputy Director of the Office of Faith-Based and Community Initiatives”. Wouldn’t it be good if that organisation was more honest and called itself the Office of Superstition-Based and Community Initiatives.