Yeah, in my experience any counseling or support based in a church (including Divorce Care) can be very preachy, unfortunately. The WAS is very self-centered, so I don't think a God-heavy approach ("What you're supposed to do") is appropriate.
I recommend you find someone else for MC. Ask your W if she would like to pick someone. She needs to be 100% comfortable with the person.
Has she mentioned going to MC again?
Me-47,XW-43 S13,S16 M:18 BD:4-23-17 W filed:7-17-17 (5 months of in-house separation hell) W moved out:1-6-18 D granted:2-15-18 Decree signed:3-29-18