One of the greatest examples of not having any faith in...
the audiences intelligence and giving them no credit whatsoever to think for themselves.
This film was not necessary, everything we need to know about what happened between Merrin and the demon was either directly discussed or largely inferred in the original film, there is no need to show it.
Filmmakers like James Cameron understand this, that it isn't necessary to pound an idea into the heads of the audience if they already have enough information about a given event.
And on top of that the film is just plain awful, both versions of it, and it can't even stick to what was said in the original. In the original it was stated that..."The exorcism supposedly lasted months, I heard it damn near killed him."
Well in this film the entire exorcism lasts barely an afternoon?
"What are you some kind of half-assed astronaut?" - 'Quint' in JAWS