I knew exactly which advert you were referring to before I even clicked on to that link. I even had a bit of a Proustian rush memory thing with the attractively bouffanted 80s lady giving a " nah, fuck off, mate " gesture to some chap having a go at ingratiaion with her , as she patently waits for her true paramour while he's having himself a ruddy good leisurely shave.
I'm not sure I can accept your "mind blown " revelation as face value, if I'm being entirely honest with you.
Having said that, I actually * did* enjoy your post. Can You do something about the Britvic 55 advert now ?