Not just diplomatic, it's acknowledging the facts that
Honestly I never call anyone out on a BS move. A lot of the moves are culturally ingrained into forms, dance or kata. This makes them tradition and people hold them sacred. I believe a lot of it can be used in principal though, thinking outside of the box is a valuable tool in any fight. Some of these non practical moves force you to think of ways an enemy could attack you unconventionally. So I believe they play an important part in teaching both young and old martial artist a lesson.