That could be.. I never needed that but others may..
Appears to be playing church to me.. Since I'm not RC, EO or Protestant I have noticed some of the Props in all the denominations I know of.. Maybe they or some of them need symbols to transduce the metaphors.. that is possible..
Some people when told "its raining cats and dogs" run to the window(symbolically) to see the pets falling.. Seeing the metaphor as literal and not as an illustration.. The symbols could make the biblical metaphors clearer..
It seems more to me each day that the sheep pens of John Chap 10 are needed.. and the sheep within them and without are both needed..
Seems to me that the various assemblies, churches or "clubs" as you have called them are acceptable to Jesus. In Revelation 2 and 3 He accepts (with commendations and rebukes) seven very different churches. Each one had its own unique challenges, strengths and weaknesses.
I'm sure when we all gather in heaven, it'll make perfect sense.