...light blue touch paper, and stand well back...
The reactions of some you so-called Jazz Sophisticates reveal you to be as insular and narrow-minded as you probably think I am.
The truth is that "metal" encompasses many different styles, and within a lot of those styles there are individuals and bands who can very much be considered to be innovators, and who are very much better musicians than you or I will ever be; from the intensity of Napalm Death with Mick Harris developing the Blast Beat, to the precision of The Dillinger Escape Plan and the Mathcore genre, to Godflesh and Justin Broadrick pretty much defining industrial metal, not to mention Post-Rock innovators like Isis and Pelican.
Then you have Steve Harris, Cliff Burton, and laugh if you will - Joey Demaio [sp] to name but three.
Metal as it stands today is not about being 14 and having ripped jeans and being able to play Welcome To The Jungle - it covers a lot more than that, and yes it does encompass jazz to an extent - and many other things, it isn't just noise - even when it is noise.
Now I'm sorry if I insulted the Jazz Club's Sacred Cow but try as might I simply don't get why you think he's so good. I'm open to persuasion and maybe the OPs choice of vid was a bad one but as it stands that's my opinion.