Kinda random but I feel like this would fix a massive issue of late game fouls slowing the game to a crawl and would force defenses to be extra careful instead of playing borderline football because the refs are scared to call a foul to decide a game. It would be an intressting mix of teams wanting 3 point specialists on the court vs playing bigs to grab rebounds and play d since hacking them wouldn’t be a problem anymore
So you want to give the refs a way to directly impact the score, rather than the current slightly better method of requiring a player to make a shot(s)?
Refs are sus enough as it is, giving them even easier access to cover/beat their spreads is a terrible idea.