So I will start with a criticism of the quote from Ollier and Pain, with whom I have more general issues than the "postorogenic part". Phrase by phrase that I disagree with:
 Only much later was it realized that the two processes [deformation and the creation of topography] were mostly not closely related, either in origin or in time. Very wrong. Deformation causes topography, and the generation of topography is synchronous with deformation. I will email you a copy of Dahlen and Suppe (1988), which shows that this is the case - send me a message so I have your address and can attach a PDF. They tackle the large-scale deformation of sedimentary rocks via folding and thrusting during orogenesis.
 ...fold-belt mountainous areas...: "fold-belt" isn't used professionally (AFAIK) to refer to a collisional mountain-building event. A minor thing though.
 Only in the very youngest, late Cenozoic mountains is there any evident causal relation between rock structure and surface landscape. and the following sentence: If I were British, I would call this "utter twaddle". As I mentioned above, there is no way for many of the exposed structures to get to the surface without large amounts of rock uplift and erosion. And as a matter of fact, the trajectory of different units of rock through an orogen is in part determined by patterns of surface erosion. To keep it simple and send you one paper, you'll find this in and at the end of the paper by Dahlen and Suppe (1988).