In the big picture, with water rations looming at some point in most areas of the country, I have to believe it will be the death knell for repetitive fairway flanking mounds, because they just need more water than flat or gently rolling ground. And, if they don't get it, the difference can be appallling.
As for green contours, ADA, green speeds and water restrictions will probably combine to reduce contours even further. I know that I like to roll the edges of my greens, and those often struggle, requiring hand watering or other special attention, especially if traffic, shade, wind or other factors are present, and they usually are.
If that becomes the "standard" for very valid reasons, our attention as architects must turn to other challenges - smaller greens, differenent or harder hazards, etc.