Actually mystery and puzzle are interchangeable. They're synonyms.The nature of "our craft" is mystery. Mystery is not a puzzle. Those are not interchangeable words.
That aside, I personally get what you're saying. I also get what others are saying as well. There will always be someone that is actually trying to figure out how we've done what we've done. Usually there will always be more than just one person trying to sort it out. When we know this in advance, and we do, we prepare for it by deceiving them into thinking a different way or perceiving it a different way to minimize the inevitable.