I don't know...there are big chunks of the song with driving tempo. It's only depressing if you know the story. When he does it today, most people don't.
It was interesting watching Garth Brooks do it in Las Vegas. He was born in 1962, so he missed the "day the music died" aspect, but really loved the Irish folk aspect to it. He has a big smile on his face the whole time he sings it. Sort of a different approach.
I miss having Garth on the country charts, if only for the exposure he used to give to worthy songwriters and performers from outside the Nashville mainstream. He exposed millons of people to New Grass Revival when he turned their "Calling Baton Rouge" into a hit, and took CCM artist Susan Ashton on tour with him as an opening act. I don't pretend to love his music -- indeed, some of it is pretty silly and/or maudlin and his voice can be grating in large doses -- but he'll always have my respect for trying to extend his fans' musical horizons. If only the current stars would do the same.