Well okay, but when the scientific method produces knowledge, the voracity of that knowledge can be checked by an observer. When a mystic convinces a large number of people that their opinions are in fact, truths, that is not a process that can be checked by an observer, and the “knowledge” produced has nothing tying itself back to reality.
The process cant, but the knowledge can be. You seem to be arguing against dogma, not a mythopeotic view. And fair call, religious power structures do a lot of harm.