HAHAHA Utterly fascinating. Thanks!
You said — “Actually, these guys think the problem is the younger wants to rely on the gospel..”
I think that may be it. The elder Schuller was hard to take with his fake-frozen smile (looked like it was cast in cement... LOL) and with his lack of the Gospel words from the Bible. Perhaps, indeed, Schuller’s son was “too Biblical” for the father... :-)