” It doesn’t mean setting up a Serpent World within the church....”
I am not suggesting that, I doubt that Douglas Hyde was or that Fr. Charles Erlandson was.
I doubt anyone intends it, but one could get spiritually maneuvered into it. And I am not singling out any denomination or earthly worship community; it would be a pan-Christian danger.
Also I think of Paul’s admonition of becoming like everyone so that by any means he might save some (effectively sharing the gospel at their level). So “to save Communists, I became as a Communist” would make some sense. Just be careful....