When we do dramatic contours in a green, we open ourselves up to crticism. I still think we must do them, but many don't like the criticism. Therefore we get too many dull flatish greens.
As for the owners, in general, they trust you to make good choices for them.
from Doak's interview ( a good description of why we get flatish greens)
Today, architects tend to err on the conservative side — Jack Nicklaus and Pete Dye won't build a green with more than 2.5 percent grade where the pin might be cut........
........If I had built Shinnecock Hills five years ago, then the debacle at the Open would have been my problem as the designer. Since the course was built more than 70 years ago, the blame falls instead on those who set it up for the tournament. As architects we tend to get more credit than we deserve, but we also tend to get more blame than we deserve. Anything that happens must be the fault of the design. Pete Dye and Jack Nicklaus — the types of architects who build courses that may host professional tournaments — are afraid of just that. Somebody will turn up the speed way too high and make them look like idiots for putting contours in the greens.