Musicians I know are always experimenting with their instruments.
They will play music that was never meant to be played on their chosen instrument, at different speeds and at different octaves. (I stress I am as musical as a dead sheep!).

If you think about it, logically, how did any of the instruments we recognise today come about?
Through instrument makers playing with different materials, methods and designs.

Many instruments of old have all but dissapeared, (mandolins, harpsicords to name but 2), and some have completely dissapeared, only to be seen in history books.

Music has always been a medium for experimentation, for new ideas, for letting go of ones emotions and thoughts.
Why would the instrument be treated any differently?

Your opinions are I’m afraid typical of those who fear change, shun new ideas and wish to remain firmly locked in the past.

I’m sure also that the, “professionally trained musicians”, were not forced into anything. I did not see a Ford company executive at the rear pointing a gun at their heads!

I’m sure also that they took this as an opportunity to have some fun, and to learn how to play these intruments.To learn something new and fresh, as all musicians love to do.

Lighten up Ed. Live a little!