The G League shoots one free throw for 2 pts. That would cut some time down. Basketball is pretty fast paced so the free throws allows these guys to catch their breath a bit.
I think you leave it as is and just shrink the screen while they shoot to show some ads. Then shorten the timeout/ad time?
I don't see it as a big issue.
I like the idea of showing adds during free throws and the cutting out the mandatory commercial breaks.
I still want to see some idea where we aren't watching basketball practice during the game, or in other words defense is still part of the game.