No one cares tbh. Like what you like, dislike what you don't, but please don't be annoyingly outspoken about it. Not necessarily was this totally in play here but it applies to everyone.
One thing is for sure...Therion are masters of the RIFF. Just writing slabs of guitarwork that own in the purest form. See 1:13 of "Voyage of Gurdjieff" or the opening of "Symphony of the Dead" or 0:48 of "Feuer Overture" or 0:56 of "Beyond Sanctorum" or the riff set at 4:22 of "Dawn of Perishness."
You should check out TOF-The Trinity on their new album. That song owns, and there's some awesome riffage, especially Kristian's arpeggiated high-note riff beneath Mats singing "Open the door!"