Every hobby I have looked into I have seen this. People get set on
something, and if you disagree it's apostasy....

Btw, I am pretty sure that Grant has changed cycling. Way back when, I was charmed by his Bridgestone XOs and bought a couple. I admired his guts when he started Rivendell was amazed when it didn't go under. Back then he was a singular voice
and slowly it changed things.