Good point.over the course of the whole game probably won't even buy a single extra Great Artist/Writer/Musician.
However even if i agree with you, it is more complex than that. If you play deity or immortal those 4 faith points help you get a religion faster, then afterwards you can get faith generating options to get more faith, earlier. Don't forget you can even settle the prophets or buy faith buildings for more faith also. So 4 points become more over the course of a game, even if indirectly.
I only pick it sometimes if i am planning to completely ignore religion. For example if you are playing a TSG game on lower difficulty and racing for a sub 120 turn domination victory. It's not a bad pantheon but there is usually always something better depending on your starting location.Someone mentioned God-King earlier. Do people consider this pantheon as a first (or stable) pick?