Actually, George Carlin nailed this entire issue many years ago in one of his stand-up routines where he was talking about driving cars. Cutting to the chase, and modified for cycling vs driving it goes like this...

Anyone who is riding fast enough to pass you is a MANIAC, while anyone riding slower and impeding your progress is an IDIOT!

Apparently, the writer of the RAGBRAI FAQ is not immune to this self-proclaimed "centrist" view of cycling that is most likely reinforced by his or her riding peers who share the same view, i.e., the "other riders" inferred by the general comment regarding, "Resentment by other riders...".

I'd be curious to know what they wrote about Recumbents and fast single bikes. Actually, what I'd really like is the name of the author....