I can speak from that viewpoint except from an Al-anon basis.
Al-anon has a christian bias and a lot of spiritual and god talk. I am a diehard computer programmer atheist. When I went to Al-anon and I saw some of the people there, their composure and serenity I knew I needed that. I am still a diehard atheist but I have found ways to make that program work for me and I am still going two and half years later.
If he wanted recovery he would find a way to make it work, I did.
Your friend,