ANSWER:
You don’t understand the difference between wiping the face after Duaa which the Prophet salla Allahu Alaihi wa sallam had never done and reciting the last 3 Quls in his cupped hands and wiping his entire body with that?
These are two different things and they are not related!
https://youtu.be/YgFLP9W8rp8
https://youtu.be/mSgmwlXkh7g