Agreed. This is the one suggestion I think the article gets wrong – Apple has established this display resolution as the minimum for an immersive experience, and I don’t think they’ll go down from here.
What I was surprised to see not considered is materials choice. I think Apple could do plastic for a non-Pro Vision device, to save on weight and cost.
I also think the non-Pro version isn’t coming until the second generation, at which point it will likely have most of the features of this Pro version while the Pro gets upgraded.