Who cares? Does he? Is he having fun? There are a couple different types of disc golfers. Competitive ones and ones who just enjoy throwing discs with there buddies. In college, i hung out with quite a few folks like this. We always had fun at the course together. I worked on getting better, they worked on either doing better or being drunker and doing the same...we all enjoyed it.
I love shooting hoops. I shoot lots of 3's. If I cared about getting better, i'd work on layups, 5 footers, spin moves, post moves, dribbling, passing, etc. I shoot 3's. It's more fun. (no different than throwing drivers for fun)
I throw Yellow and white Prodigy/Innova/DGA discs.