It's "superstitious" from a Christian (particularly Protestant) point of view but this is what religion has historically been for most people. Even in rural England in the 1970s I saw the farmers had all kinds of observances related to saints, seasons etc. that didn't involve the church. I like to joke that the low belief in Christianity in England is because most Englishmen are actually druids!
I think some Chinese (I don't want to extend it to "Eastern" because I don't know) ways of thinking are "superstitious" from any rational standpoint. Even in non-religious contexts, it's common to believe in things like being careful not to accidentally invite a ghost to stay at your house during ghost month. Or take something like blood types, a Western medical discovery. Many people In Taiwan and Japan believe blood types can say something about your temperament or use it for match making.
Belief in fan death is still common even among successful educated people in their 30s-60s. Don't argue, it won't get you anywhere that a flat earther won't take you.
I think a huge source of confusion around East Asian cultures and rituals/religions is that this religion-culture has no formal names, definitions, structures and boundaries. There is no church or a verse responsible for the upside down 福 on a wall of a downtown Chinese restaurant, but there is it, and the only word applicable is superstitions. On the other hand there are Christ-mas cakes with a smiling figurine of a Saint standing on it.
The thing about polling people about superstition is that people generally believe their own beliefs, so you're only going to conclude that other people are superstitious when they believe things different from you. So at best you have a noisy metric of ~religious tolerance.
It’s the same in India, except the superstitions are more codified and all wrapped up within Hinduism. I don’t know if a lot of Hindus believe there is a god but it’s a heady mix of hero and ancestor worship and modes of good living brought to life as a religion.
