So the clear circles are what the players should have done on defense? Those things were moving around at light speed. Even if Toronto had the talent to pull that off, which they don't, only Miami does. This isn't A video game, those players would break down midway through the season if they played at that frenetic pace on every defensive possession. That's just crazy amounts of movement.
Edit: I don't agree that teams should shoot way more threes, but I do agree that bad players should be made mediocre. I can't confirm this, maybe Spurs-Gaf can help, but it seems to me like Pop makes all his perimeter players improve their 3 point shot. Can't be an accident, it's probably something he asks for. "I want you shooting 500 threes after practice every day until you're making 90% of them in practice and at least a third of them during the game" kind of thing doesn't seem so far fetched.