i think this is metal, some don't.
Metal in my book too. Never much of a Pantera fan though, the intentionally disjointed nature of the music and the "I have one emotion only and that is anger"-vocals tire me out quickly.
And the test: Girls won't dance to it, so it must be metal.
Lemmy's claim to Motörhead not being metal (though both his co-musicians in the current - or last - line-up stem from arch-metal bands, namely Mercyful Fate and NWOBMsters Persian Risk) is mainly based on the fact that the songs stayed short and there were little and only short solos (though live the guitarist's stand-alone solo spot could be endless as Lemmy would need that time to catch his breath for some years already) as well as the absence of sword and scorcery lyrics plus a certain punkish, man-of-the-people, non-grandeur attitude in the live delivery. All other musical ingredients - the double bass drum excesses, the riffing guitar, the eighth and sixteenth note "rhythm guitar bass" playing - are/were very much metal. Motörhead was certainly more heavy metal than Hawkwind ever was.