You'll note that I didn't say it reflected on proficiency as a whole or the quality of the war fighter. Nobody is going to argue that the Army has us beat in either of those categories. Take 20 random "rank and file" Marines and 20 random Army dogs and have them shoot a match and the Marines will win every time. That's not how it works though.
What I said was that it was clear that the Army as an organization cares more about competitive marksmanship, which I think is self evident. Does it matter in the grand scheme of things? Probably not. Still it sucks to watch your team lose.