Also lost in the conversation is star power vs depth.
If you reduce the number of games to say 50 games, teams with super stars are gonna be better off, they don't need to rest their stars and can play them in every single game. Whereas if you stick with 82, it gives teams that don't necessarily have stars but are very deep a chance to get good seeding in the playoffs.
Reducing games is going to tip the scale to the likes of Cleveland, GSW, Clippers, etc, and that's not good for the Jazz or smaller market teams, or teams that don't have 3-4 All Stars on their teams.
What the super teams wants is go straight to playoffs with minimal wear and tear during the regular season as possible, and by reducing games, it's gonna play right into their hands.