My idea is, of course, kind of a conspiracy theory because I can’t prove any of it, but your Neo objection doesn't contradict it. In my view, the Neo is more closely related to iPhones or iPads. It’s more an iPad+ than a real Mac.If that was true, the Neo would have never been released.
It might be true that the wannabe AI Masters of the Universe might want that world, and companies are engaging in the circular CapEx spend on that gamble.
Hardware manufacturers, and Apple absolutely is a hardware and services company, doesn't want that. They're interested in AI being a tool for their user base, but that is not their business model.