That's really unfortunate. Iggor is certainly someone I've always admired and his talent shouldn't be slept on.
His channel is one of my top 5.
Yep, it is unfortunate because there is a lot of talent to be found in metal. Igor was a big influence on me as well in the early days. Even though I've moved away from that style, I still admire and respect what he's done for the genre.
I have a list of drummers that I feel should be represented here, but based on some recent additions, the requirements seem to be arbitrary regarding qualifications. Besides, it was made clear in another thread that suggestions weren't being sought.