First of all, no Ringo did not popularize that grip. Many used it before him. Second, the traditional grip is an antiquated grip style that really has no purpose today. It was developed by marching band drummers because of the way the drum hung around their neck at an angle.
The way a drummer holds his drum stick is no indicator of their talent.
My two favorite drummers are Neal Peart and J. Bonham. Both Match Grip guys.
I've been a drummer for 46 years. Sorry to have to disagree with you, but when I read your post I had to set you straight.
So don't automatically assume that just because someone has their "palm up" that they necessarily are a good drummer. I actually do the opposite. 😁