There are many elements of the faith that you could probably dispense with and still manage to be genuinely Christian. A church house can be as barren of ornament as you like but still filled with the Holy Spirit. But that doesn’t mean a church house must be a dreary, spartan affair. On the other hand no surplus of bric-a-brac can guarantee it. I could never go in for a theology that utterly denies the real presence, but I’m also a little suspicious on one that insists on it so utterly that to question it in the slightest is to incur the wrath of God.