I dunno. I've never really thought of Demonolatry as being much more than a quasi-pagan form of spirit worship. Its presence seems primarily limited to the internet, in either case.
I don't see the point of using the term "Satan" at all unless it is adversarial in some way. Trying to redefine Satan as some transcendental creator-god makes no sense either, and is most likely a symptom of merely trying to paint a white-light god black.
I read some of their devotional material a while back, and to put it lightly, it made me puke a little, seeing that they seem to regard Satan and His legions as benevolent little house-elves that you worship and pray to like any other boring deity. Not LHP in the least.
«Recibe, ˇoh Lucifer! la sangre de esta víctima que sacrifico en tu honor.»