The stream is dated March 10 2023 and he mentions writing it "last night" at 31:10 (
link).
Steve Gosney isn't an idiot in the sense that he is ignorant in this case. Nick had
thoroughly outed himself as a degenerate hedonist who wants to try it all before he reaches age 55 during his mid/late December 2022 shows.
Steve Gosney, a professing Christian, knew as well as anyone in Nick's circle (especially by that point) what kind of "Christian" Nick is. Steve just wanted Nick's name because he thought it was still worth something at that point, which is why he wouldn't care if Nick mentioned Christianity at all in the forward. The man is selling a product, which also includes stories of lust and law in addition to a guide for Christian wellbeing.
So, a grifter gets another grifter to vouch for their grift and reach a wider audience. This is why he got Megan Fox of all people to vouch for his book. Same team mindset wherein they can compound their social currency with each other through exposure and sharing their audiences within their own circle. Incestuous, but it can still be somewhat effective.