You said, And I suspect the protocols, the repetition of words and physical acts make it appear ritualistic to an outsider, especially one who expects services to be equally teaching and worshiping.
I am certain that this is the case. I'm also certain that this is a cause for much frustration because of a lack of understanding or appreciation for it.
But from my perspective "on the inside," it allows me to go deeper into the worship than I would be able to otherwise do, if I didn't know what to expect next. Just my experience.