I think to listen to one form of music and label by another name is disingenuous.
I think to pass off one form of music deliberately by calling it something else is indefensible. I am all for cross-polination of musical styles as long as you call them what they are.

For example, jazz has gone through metamorphosis incorporating many style of music but the styles are usually identifiable as trad jazz, be bop, hard bop, fusion, Euro jazz etc.

I sing folk songs and accompany myself on the banjo, guitar, autoharp and uke.
I don't call myself a traditional folk singer. Far from it. I'm city born, bred and raised. I went to music school and studied orchestration and arranging and played trombone in high school. I learned to sing many folk songs by listening to traditional folk performers from field recordings, Library of Congress Lomax, Harry Smith Anthology and had the good fortune to hear Horton Barker and some great back porch trad singers live. I think I know what I heard.

Charlie Parker was known to have said, "It's all music" but I doubt you'll hear recordings of him playing with a New Orleans marching band. What he meant was that an appreciation for all kinds of music was informative and I believe ultimately healing.

But when you call a form of traditional folk music which is not familiar to large populations, something else, you show a kind of disrespect for the music. You also display a kind of ignorance analogous to calling strikes, balls and home runs to a part of a basketball game. I'm no sports enthusiast but I won't make that mistake.

A trad singer holds a special place in a nation's culture. He or she is often a historical document that is as important as an anthropologist's monograph or a social historian's revelations.

I have nothing against rock and roll or popular music. I enjoy it and sing it myself.
But I won't make the mistake of passing it off as traditional folk music which is a unique experience of its own.