Most "black metal" is fake
I think that throughout the course of history, there have always been very few bands that have been able to live up to my standards, at least of black metal… Then there are thousands and thousands of misrepresentations and misconceptions of it. But true and genuine black metal is always something that will always be a minority in the music scene. A small minority even. Then there's all these people that kind of want to… It's just like punk, you know? You have a few real punk bands, and you have a thousand bands that try to do the same thing, but fail because they don't have the right spirit and they don't really believe in it. But at the same time, it fascinates a lot of people, because it is an extreme way of expression, and it is controversial, and it's therefore also popular and people are fascinated by it. That's why it's also so often, like with other forms of extreme art, whatever it may be, that's why it's also so often misused, and just even commercialised, just for the sake of that, horror sells. And extreme metal sells, controversy sells, and that's why there's so many charlatans in this kind of music.
Apparently this guy has some kind of melodic heavy metal band and they're relatively well known, but I've never heard them. I think he makes a good point though. Most black metal is ersatz at best or a forgery at worst.