Sometimes it is better not to worry too much about what other people are thinking.  Sometimes, Shi'a are especially concerned about seeming strange to Sunnis or on the world stage. While this is understandable out of fear of killing or persecution, most, if not all, of the world's religions have practices that seem bizarre to others.

At the same time, many types of practices are similar across world religions because they serve a same function with respect to our psychology and spirituality, especially involving sound, recitation, and movement. Sometimes these things are also what keep a person in the religion in difficult times, rather than formal and serious things like formal scholarship.

So sometimes it is better just to let people do things how they would like to do it, when it comes to optional (non-wajib) religious ceremonies and commemorations, even if it doesn't match one's own preference; one can always abstain and do something else.