To be fair, owning an apple tv and only an apple tv is not a scenario that I would expect, so I’m not surprised apple’s engineers simply didn’t conceive of this situation occurring. Occam’s razor would lead me to assume this wasn’t malice on apple’s part.
It should be obvious to any product manager or engineer that a product is going to have buyers who don't have anything else from the product line. That's a thing that happens.
That's assuming Apple TV engineers are living in their bubble and no product/design people validate the screens showned to users (including wording and presentation). Then allowing a product to be updated and maintained in this conditions brings further questions on management and how they see their users.
You might as well be right, but I'm not sure it paints Apple in a better light.