An audio system should do justice to any type of music played. If not something is off. And rock music and metal are not inferior recordings many metal and rock acts used much care in mastering. As with all types of music bad recordings exist.
Does Heavy Metal music benefit from a high end audio system?
Not to dig at the genre although I’m not a fan, does Heavy Metal music benefit from an higher resolution systems? I’m not talking about comparing to a cheap box store system, rather, would one benefit moving from an audiophile quality $5-10k to a $100k+system?