Kuchar is definitely a marvel. Hasn't missed a cut yet this year, and if you look back at the last decade or so, he only missed more than 2 cuts once (when he missed 4 last year). And several years it's been 0 or 1. It took him some time to find his stride in his 20s, but once he got close the 30, he did and became a golf ATM.
You do wonder if taking a few more weeks off might result in more wins, but I can't argue with the formula. He consistently plays 25-26 events while a lot of players his caliber will only play 20-22. I've always chalked it up to the struggles he had throughout his 20's. He didn't find this level of game until he was nearly 30, so I think he has a different level of appreciation for it than some similarly talented players that found their stride earlier. If you look at his 20s, he spent most years missing about half the cuts (or worse) and had some pretty lean years mixed in. So now he's gonna make hay while the sun is shining.