Why only the choir ministry?

The Crystal Cathedral appears to be undecided on the question of gay marriage. Here is a covenant that choir members were asked to sign. The document states, in part,

I understand that Crystal Cathedral Ministries teaches that sexual intimacy is intended by God to only be within the bonds of marriage, between one man and one woman.

Church leaders later denounced the document. Robert H. Schuller:

I have a reputation worldwide of being tolerant of all people and their views...I'm too well-educated to criticize a certain religion or group of people for what they believe in. It's called freedom.

So what does the Crystal Cathedral actually teach on the subject? Reverend Schuller has made it about his reputation and education. Perhaps it's about Truth. Being afraid to take a stand on what is true is not tolerance, it's spinelessness.