Your first point is entirely accurate, my fault.
Still, the 1962 Royals were an underachieving team -- Bob Boozer, Wayne Embry, Big O, and Twyman. Lost 3-1 to the 37 win Pistons in the first round. The next year was more of the same. The big win total increase came in 64 once they got Lucas, who averaged 18 points and 18 board as a rookie while shooting 53% despite being an inside/outside guy.
I do think there was a point guard vs. shooting guard differentiation then. Jerry West was moved from 2 guard to 1 guard when they got Gail Goodrich, which meant his assists increased as primary ball handler. The SIZE between 1 and 2 guards wasn't notable then like it was in later eras.
Likewise, look at the Celtics, the closest thing to a less-position oriented motion offense in that era I believe. In 1964, there was no doubt that KC Jones was more the point guard and Sam Jones more the shooting guard. KC got more assists, dribbled it up the court (often with his back to the basket to defer pressure as was done then) and passed to Sam Jones, who got a lot more points. Even in their pre-Princeton-ish offense, there was still a PG and a SG. The SG would play more on the wing and cut through to get post passes from from their bigs.
As for the domination of Wilt, I think the counter argument to him, is, and always will be, that he didn't win more championships. In college or the pros. The 67 Sixers and 72 Lakers are considered two of the best teams of all time, but neither managed to win a second title.
67 was the best version of Wilt as far as I know. The year he was very focused. 24/24/7 and didn't get into his weird later years Laker habit of sometimes going a whole half without taking a shot as if he was too tired or bored to try to score anymore.