Black metal should absolutely be this creepy, atmospheric and thematic live. Huge sound behind that presence gives them an unmatched intensity and they're back at it.
Says enough when I enjoy a sound I previously didn't from execution. When conviction and authenticity play a huge part in the writing process, you're going to end up with something great. Check it.
I haven't seen Embra live yet. Give this a listen, there's some real energy behind this stuff. Attention to song flow always gets me-- not a riff out of place with this stuff.