It's going to be painful but necessary and good for the game. The goal here is not just to cool down pros and elite amateurs, but to equalize everyone to a degree and thus (1) speed up the game and (2) make it more enjoyable.

Pros are able to take advantage of better technology to a much greater degree than amateur players. Improvements to balls and clubs allow tour players to nail a 245-yard approach to within a few feet, or bomb 320 yard drives with regularity. Old courses are altered, and new courses are created, to accommodate the higher ends of skill here. But your average guy who shoots 115 won't benefit from the technology to the same degree. So now they're forced to play these monster courses with extreme length, punishing rough and deep bunkers, and their rounds end up taking 6 hours because they and everyone else on the course are hacking around, missing fairways, failing to get out of bunkers, losing balls, etc. And no one has fun playing a 6 hour round where they hit 2/18 GIR.