Like actually? It doesn't make sense from a security / software point of view as for stealth, you work with injections and should be easier to check. Can someone please share their experiences? Mirror should be theoretically safer from every angle (I have still been banned on mirror for a bad NMZ script).
It could be that you used the stealth client instead of the mirror client. I believe stealth injects things into the client or uses its own client which can fail a jagex integrity check. It's always safer to use a mirror client as the game runs on the official integral runescape client where the inputs are normal bot automation inputs.