That would incentivize more 3s and dunks. The article spends plenty of time describing why incentivizing dunks is a bad idea, and of course, the question is about how you get fewer 3s attempted.
Here’s my suggestion: reduce the rim diameter slightly. This is something that could easily be tested in the development leagues, especially if it were a removable insert.
Not just for getting talent, but also so people can feel closer to the sport. There's more of a connection when the game you're playing casually is the same as the game that you're watching the really skilled people play.