To be fair to Adrian, what else is he meant to judge success on? He is an architect in business to build courses which make money...so success is money.
That said, I disagree that the courses of the 90s will see their day in terms of critical success. There can be no doubt that a great percentage of these courses are "fad" driven an not designed for critical longevity. For the most part, the modern courses which are displacing some classic courses on the lists are of the classic design mould, extremely beautiful and/or on turf which will support the highest class of golf. The lack of good turf, on course aesthetics and charm will always be a hinderance even for the modern courses which do have credibility as challenging courses. Of course, much of the time when moderns grab this spotlight it is because there is a dearth of suitable classics in the area...and if there are some reasonable candidates...and there is money to be had due to marketing as a host club, then many classics can ratchet up the difficulty of their courses...that ain't hard to do. The much bigger challenge is how to increase difficulty without sacrificing charm and playability.
Sorry Adrian, I think we have already seen the rankings largely pass over the 90s for the newer high profile courses built on more of a classic platform. There are probably about a dozen 90s courses in the top 100 and of those I would say about half are either very pretty an or on excellent turf. We are looking at maybe six courses from the 90s built inland on less than ideal turf which are top 100 and only Loch Lomond really challenges some of the very best courses in GB&I for a high spot. All the others are making up the numbers in the bottom half. Exactly which courses are going to rise to suden prominence?
Ciao