Sales funnel and conversion funnel might be the right terms to understand what he is doing with that page. The audience to that page most likely already came across him through his work, for example, somebody receiving his physical newsletter that was passed around by someone else. That page is not for cold audience but more for person that is already moving along the conversion funnel.

I wouldn’t be surprised that he posted that page here to understand how he can create a page more appropriate for colder audience or someone very early in the conversion funnel.