Does it matter what's going on when the end result is annoying noise? It's music, nobody cares about the process. Although I highly doubt this kind of noise requires talented musicians.
Lol, dead wrong. And the end result to YOU may be annoying noise, I hear music. As I said, when you can't comprehend whats going on, it's going to sound like noise. There is certain metal that sounds like noise to me, Grindcore being the notable example. Im in a big European melodic metal phase right now.
As for the talented musician part... dead, dead wrong. I'd venture to say that Jazz, Classical and certain types of Metal require the most skill of any types of music.