Generally, I think wild greens become ridiculous in one of two circumstances:
1. They get too fast, or
2. The rest of the course is also very hard.
If the wild greens have a purpose, such as to generate interest on a course that's otherwise short and/or fairly wide open, then the people who complain are just the ones with poorer short games. But if the course is 7000 yards long and tightly bunkered or treed AND it has wild greens, then most people are going to think they're too much.
Sebonack's greens are not as wild as a few other courses I've built, but in the context of the course, they're much more severe for reasons (1) and (2) above.
Old Macdonald's greens are bigger and more severe, but if they were faster, I think there would still be plenty of places to put the hole ... you'd just have to skip a lot of the most interesting spots. Plenty of people complain about all their three-putts at Old Mac, not realizing that many should just be chalked up to the sheer size of the greens. As at St. Andrews, three putts from 75 feet are not at all uncommon, but there are many courses where you never face a putt that long.