The good thing about fads is that they do come & go.
I find the whole bandwagon mentality a bit humorous but there will be a few folks that aquire a genuine interest in traditional music because of it.

It was because of things that I'd discovered in mainstream media that I searched for and discovered things that you'll rarely find in mainstream media.

Bonnie & Clyde,The Beverly Hillbillies,sparked an interest in BG music for me,& in turn I found out about great musicians like Ralph Stanley,Don Reno & others.
It was rock bands like Cream,Rolling Stones & others that sent me searching for Robert Johnson,Howlin Wolf,Muddy Waters,etc.

All in all, I'd say we're pretty safe. Folk,blues,bluegrass music has many times been dropped into the pot with popular/commercial/mainstream music. It always manages to rise to the top & climb out to safety. Good thing too,I can't afford those designer overalls!

DB.