You are totally wrong. They are a critical means of communicating the record's message. The essence of the record is a bastardization of Christian dogma with Satanism. Everything is a blending, a sardonic means of annihilating Christianity by embracing it. This is achieved in several ways: the embedding of scripture within black metal songs, artwork that blends the divine with sin (an aborted fetus-angel, angels engaging in mutual masturbation, etc.) and of course, the embedding of religious music within black metal. If you remove those passages then the record no longer communicates its message as effectively.
Think of it this way. The title of the record is basically: "If you seek His sign, look around you." The 4 Prayer tracks function as the seeking. The black metal tracks function as the answer. If you remove the Prayers, the essence of the record is totally altered.
Whether or not you enjoy those passages, it's pretty clear that the essence of the record is not communicated as vividly if they are removed.
10/10 would read again. Excellent post.