I hear you saying, “Don’t bother me with the facts.”
When I get to Chicago, I’ll look it up. Will anything other than a personal interview with the pastor convince you?
There's never been anything on that site and I've checked it "way back when".
Just went through the site in the last few minutes to make sure it still said what it said, and it does although some things have been deleted.
UCC is not mentioned except in the name on the building.