Yes, I agree with that. Same with Babe Ruth, of course. They do have inflated statistics because the competition was not as good. BUt: 1) the competition was not at D3 level, I assure you; that is simply incorrect -- there were 60 starters in the NBA at that time, and they were MUCH MUCH better than today's D3 players. I would venture to say not a single D3 player today could make the NBA in 1965. 2) Do not make the mistake of devaluing the legends because of the competition. Babe Ruth would be a superstar today. So would Wilt, Oscar, West, Baylor and Russell. The greats are relatively constant across the eras.And again, I am not suggesting that good D3 players today are better or as good as the legends. They aren't.
I am suggesting that the average players from that era (especially the early 60s when the greats were posting video game numbers) just weren't that good when compared to league average players today. The talent disparity makes the legends look better than they actually were (and they were great).