Lol, 82 is an arbitrary number? There's a schedule balance in the NBA. The league likes to play a certain amount of divisional games, a certain amount of conference games, and the standard 2 games per year against the opposite conference. As the league has expanded, they've had to make concessions on the amount of divisional and conference games being played for the sake of not expanding the schedule.
If they contract the schedule, you will lose more of that balance. You're either giving up games against the opposite conference, which hurts the leagues marketability, or you lose games against division/conference foes which could prove to be crucial. As much as you'd like it to be, 82 is not an accidental number. Can you play a 60 game season? Of course you can, but you can't do it without changing the current balance (which I think is fairly good right now) and skewing the record books. All of a sudden you have an asterisk by a scoring champion to denote whether or not the accomplishment was made during an 82 game season.
I know "old school" is seen as a bad word in this thread, but at some point your league's history has to hold some value. I think all of this is important enough to cause the league to at least look into other ways of lessening the physical pressure put on players while still maintaining the amount of games being played. It's called a compromise and more times than not, they usually yield the best results.