Ever seen the Hans Rey story? It's why he went from mod to mountain bike in the early nineties, and from lycra to proper clothing, because he just looked weird & it alienated people, people can relate to something alot easier if it looks more "normal" His profile went through the roof because people could relate to what they saw now, a normal looking bloke on a gt mountain bike.
Generally people will look at someone on a deformed bmx with a fat back tyre wearing lycra and think jesus what a weirdo and walk the other way, because be honest, no matter how good they are, or how much it benefits the rider, it just looks cringeworthy. I can't see ryan leech/jeff lenosky getting the same treatment.