I probably have more diverse tastes than most here. Anything save for radio-play tripe and shit hop, which doesn't actually meet the definition of music anyway, is on my musical palette.
Talent has nothing to do with playing a million notes per hour. Collen is a pure example of playing fast for the sake of playing fast, and playing sloppy as hell while he's at it. He's a hack.
He wishes he could write/play this.
Now if radiocrap had any talent they'd probably sound a little like this. More dynamics, better vocals, more sophisticated arrangements and more intelligent melodies and note choices.
The reason y'all probably haven't heard any bands like this is because the general public is full of pablum sucking morons and they dictate what you get to listen to, along with big $$$. There's a million other bands and musicians I could reference but it's pretty pointless.