Superstition has a bad name. When Skinner's pigeons were subjected to a purely random response from the button that triggers the feeder they start doing ritual dances for luck.
Superstition is a response to a phenomena you don't understand. Even people who are scientific about what they know are superstitious about what they don't know.
In my opinion it's just as superstitious to say that there is ghosts (since there is so many reports it's not anecdote), as it is to say there is not.
Suspecting the existence of nonhuman forces at play in the world is superstitious but is it really wrong? Isn't this the root of curiosity - something going on that is hidden that you are determined to investigate or try to make use of. All things that are now known were once unknown, and a heretik investigated the thing and turned it into science.
If superstition is heresy under scientism then burn me at the stake.
I definitely don't think it's heresy, and I think in many cases being superstitious is actually quite helpful.
I know many athletes lean into superstition to replace anxiety with a sense of luck and confidence. Placebo or not, it's been proven to enhance athletic performance for this reason.
I think that sometimes superstitions might help you create good habits, like for example you always do a routine a specific way, because if you don't do X, then it's bad luck, etc.
On the other hand, if you just are just scared of the world because of superstition, then it's bad for you.
I like to get cheaper deals based on superstition, say staying at the 13 level in a hotel, flying on Friday 13th, etc. Or the same but with 4 in Asian countries (tetraphonia)