I have a friend who does some business near the Crystal Palace "Church" and they point out KICC are careful about how they announce the events. IIRC the posters said things about concerts rather than religious meetings. I am happy to be wrong here.
Having lived near a community evangelical church before I found the parking, noise and rubbish a real problem. I didn't receive the most "Christian" welcome when I asked people to move their cars after boxing me in again and again and parking on double yellow lines........
Why dont we move Whetherspoons into M&Co, M&Co megastore to open in the Capitol? Then cover Havelock Walk and show films in there!!