I’ve never used deathcore as a genre definition before, but it just makes so much sense after listening to Lorna Shore. Also, seeing “blackened death metal” as a genre on Wikipedia is part funny, part makes a whole lot of sense as well.
As for the music itself, this is an amazing blend of stuff that I like (which are noted in the above definitions). It’s also great focus music to me, as a backdrop when I’m not writing copy just doing design work.