So, summing it all up: The three-shot foul creates a massively disproportionate penalty to the crime committed, on a play type that officials have difficulty calling correctly. It also likely creates more contact and injury potential rather than reducing it, and incentivizes both boorish behavior and stylistic monotony that make the game less entertaining. The league can go back to three shots in the final two minutes to eliminate intentional fouling incentives late in games; we already have several other rules that change in the last two minutes. But for the first 46 minutes, it’s clearly a bad rule.