Looking back in the OT with the Levites with breastplates and there was some show back when they had the Ark. I'm sure it was awesome because God was really present. You could feel it. Now, we have the Holy Spirit and it speaks softer. I've been to Catholic services. It felt creepy to me. If you were raised in the Catholic Church, you would be drawn to it.
FYI, God, in the form of the Second Person of the Holy Trinity, is really present at every Catholic Mass.
It’s “scripted” because the basic order of Mass comes to us from Christ’s words at the Last Supper through the Apostles and the greatest ancient saints (Gregory, Ambrose, Chrysostom). I guess you think some random preacher dude going “off script” is a plus. I don’t.
And is it theatrical and ostentatious...or just making use of everything in creation to glorify God? ...whether it is architecture or music or...yes...the senses.