Well, he'll never know unless he ask. My ford dealership where I live has helped me with many items thru the years that wasn't really a warranty claim. THEY JUST DID IT BECAUSE THEY ARE A GREAT DEALER.
I'm not sure anything would help hood flutter. I have a pilot and the hood flutters also.....I'm thinking it's just the nature of such thin stamped material. If you find a way to stop it...please let us know.