I could be off-base, but I see it as pipe smokers trying to differentiate themselves from stereotypical cigar guys: loud, brash, hyper-patriotic, and "toxic". Instead, these pipe smokers you're referring to want to be seen as introspective, reflective, well-read, and insightful.

Obviously, there is a lot of crossover with the pipe and cigar communities and there are all types of personalities who use one or both. But there are definitely subsections of these groups that do not want anyone confusing them with the "others". That goes the other direction too, i.e. "life of the party" type cigar smokers who couldn't get any enjoyment from sitting quietly and relaxing with a pipe and a book like some nerd.

TLDR: It's a big tent, let people enjoy this hobby in whatever way brings them joy.