It was Billy's second year in the NBA, he was not that big of a factor. Hal was 30 but he had a solid year. It was still mostly Wilt with some help from Hal.
The Boston team that Wilt beat had HOFers: Bill Russell, Sam Jones, John Havlicek, Bailey Howell, Tom Sanders, Wayne Embry and Don Nielson. So he went up against 7 HOFers all in their prime years and beat them with 1 other prime HOFer and a sophomore that didn't contribute that much.
So ill still stick to saying how impressive it is. There arent even many USA Olympic teams that have that many HOFers on it. Some All-star teams dont have that many HOFers on it.
If Warriors add Lebron and Kawhi next year they wont be as much of a super team as that.
Also it didnt take much to be a HOFer back then...