I think you should take his comments on tubulars with a grain of salt. For example, he seems to think that pro racers don't use tubulars on the alpine descents which is far from the truth. You need only watch the videos or television coverage to see that they do.
For example, Lance uses Ksyrium SSC tubulars and Lightweight tubulars for the mountain stages. He doesn't swap bikes or wheels at the top of a pass for the descent. Nor do others in classics, one-day races or other races that many, many pros use tubulars on.
He also mentions a 120 tpi as high quality. Maybe for a clincher but good tubulars are around 400 tpi so its not even close on that.
Anyway, there are ups and downs to both systems. For racing or someone experienced with it, tubulars are the best.
For the sake of convienence, clinchers are the best for 80% of the people out there.