That's right - Richard decided that the guy behind the "pistil-packing vampire" was not half-bad. The book also says that Richard became very close friends with the original Audrey, Ellen Greene - who was seeing Marty at the time.
In that same chapter, the book tells how Richard would occasionally play the devil's advocate during brainstorming sessions with Jim; Jim would be surrounded by all these people saying, "Yes, yes, that's perfect," and Richard would ask, "Are you sure you want to do this?"
Another thing I was mulling over about the book; in the early part, where they're discussing Howdy Doody and other kids' shows of the 1950s, one person said HD was bad in that Buffalo Bob and the others didn't understand the way things worked with kids - mainly, the kids would come in dressed in their best, only to go home tired and irritable because Buffalo Bob either ignored them half the time or talked down to them, or something. The book also says that Bob was occasionally hostile to the kids as well.
I remember thinking that it was the complete opposite of the way Richard, as an adult, interacted with kids who were visiting the sets on TMS and SS; they'd have his complete, undivided attention, and he'd do everything he could to make them feel welcome.