4. Individuals will abandon their frame when they just don't care
You already stated it in the pick-up scenarios (btw, makes SO much sense now, those pick-up artists with schools are obvious NTs!)
In early stages of relationships, dating, courtship, happens all the time. I've totally done it before. I say something, someone disagrees, and normally I would debate my point and enjoy doing so (because that's what I do). But instead I go, "Meh, I'm just trying to [get a friendly hug at the end of the night] so sure, I can let this go"
So it was both that I was afraid of losing the desired outcome of the bigger picture and that I didn't care about defending my point.
When this happens in relationships and courtship too much it's a bad sign. Especially when done against your better judgement.
So conceding can definitely cost you footing if you do so unwillingly or unnaturally or because you are forced.