The league wanted it, but the NBA Players Union said no:

I don’t know for sure but I’ll bet the main driver behind this is LeBron. There was a minor controversy during the playoffs about him being unvaccinated.
War, markets, politics | Propaganda alternative
The league wanted it, but the NBA Players Union said no:
I don’t know for sure but I’ll bet the main driver behind this is LeBron. There was a minor controversy during the playoffs about him being unvaccinated.