I won't get into this theoretical discussion about the severity of the greens and who is happy or unhappy with them. I haven't been back to Sebonack since the new 14th green was constructed, although I am taking a couple of friends there in October, and will get to see it then.
Some of the greens are very severe. A lot of that was at my impetus, and some was not, but all three of us (Jack, Michael, and myself) signed off on every green that's in the ground, except for #16 and #14 which have been changed. Regardless of what anyone thinks about them, the greens you see now are the ones they'll play for the U.S. Women's Open next summer ... there is no time to change them now.
If I was handed control of the set-up, I guarantee you I could make Sebonack play properly for any event you wanted to play there. But, since neither the owner nor the USGA give the co-architect any role in course set-up, whatever happens next summer is on them. I'll have my fingers and toes crossed that they do a good job of highlighting the interest of the course, instead of overriding it.