Part of the tendency towards lightning-fast greens has clearly been caused by use of the Mr. Stimpson's device as a comparative measure between courses, which when taken to the extreme is ludicrous on its face because IT ONLY MEASURES ONE VARIABLE. (Similar to the concept of comparing the merits of different courses by only comparing length.)
I think the following article (from Grounds Maintenance magazine) is worth reading in its entirety on this topic. In particular, the author's analogy with respect to course comparisons is spot on, so I've quoted it after the link:
http://grounds-mag.com/ar/grounds_maintenance_tools_trade/"Let's face it: It is hard to resist the temptation to compare golf courses, and it is exceedingly hard to comprehend why a green speed of 10 feet at one golf course should not be compared to a 10-foot green speed at another golf course. So in an attempt to explain why green speeds should not be compared from course to course, I offer the following analogy.
A lone driver on a western desert road delights at the wide-open spaces and the exhilarating feeling of driving 80 mph while driving toward a distant majestic mountain range.
As the driver approaches the base of the mountain range, the road begins to have long sloping curves as the flat surface of the desert begins to be left behind. As the driver gets closer still to the mountains, there are hills and valleys incorporated with the long sloping curves.
Finally, the driver enters the mountain pass where numerous treacherous hairpin turns dictate that one miscue at the wheel could result in a fatal error. At this point, the thought of 80 mph is long gone, but the exhilaration of the drive has not diminished. In fact, some would say the true exhilaration and test of driving skills are found in the mountain pass.
It is true that 80 mph is 80 mph is 80 mph, but that does not mean that driving a car at 80 mph is always warranted. In fact, 35 mph on the hairpin curves of the mountain pass may actually be more exhilarating and may indeed even seem faster than the 80 mph experience on the flat desert road."