Interesting... I'm not so sure the number is as high as you might think.
Tee shots. I can't believe players (let’s say "high end" players) are picking the fairway as their ultimate goal. Sure on a lot of holes, but on every single hole? I know there are times, or situations, or opportunities that allow the player to have a better chance at a number that might not be from the fairway. It still requires a high level of control to get to those spots. Ultimately, I think fairways are a suggestion, and don't really play a huge role in the final score. Excluding, of course, the ridiculous setups.
Approach shots. These same players have the ability or intention to shoot at quadrants, not just the entire square footage of the green. Once you begin hunting the sections, you assume the risk for missing them (worth it in my opinion). The caution is certainly greater compared to the "fairways hit", because GIRs do influence the score more.
If today's players with today's equipment wanted to ultimately hit all the fairways and all the greens, I don't see it being ultra difficult to do. But I also don't think they would score any better for it. The carat just isn't big enough to reward playing with the safety on.
