League pass does not apply to nationally broadcast games or games in your local market. I live in LA and root for the Celtics, and watch all the home broadcasts with their arena feed. If I lived in Boston it’s not an option and I have to have a cable subscription.

If the team is on a national broadcast, it is also blacked out.

That being said, I listen to the finals on the local radio broadcasts via the NBA app because those are never blacked out.