Please don't start discussing particular bands here.
The article is rather complacently written and reeks of dispassionate writing, but it's kind of decent for a "crash course" on why people who only like mainstream music should enjoy metal...I guess...
I, too, was waiting to read something that accurately describes WHAT about DM compositional techniques and playing style makes it worthy of another listen from a modern radio listener...then I realized it's futile because that involves using theory terms and lots of musical jargon, which the average joe just won't care about enough to read...