Regarding looking at the iPhone in a vacuum, I was referring to the iPhone gen 1 vs. the iPhone product line as a whole. The point was that the claims don't make sense unless you look at just the first generation of the product, which was clearly not Apple's vision.
Regarding other features, I don't understand the connection you're trying to draw here, or how they serve as counterpoints. All these anecdotes point to is where Apple has chosen to focus resources and in what order. Having worked on a product team, there are dozens of "obvious" things that get cut from every release. I don't see this as some enormous indictment of the product.
Mouse input on what? iPhone? Is this a thing?
A native file manager is a feature that applies to a small subset of users. Do some people want it? Sure! Does a lack of it somehow imply Apple is failing? I think that's hard to argue. Anecdotally, as a highly technical user, I rarely if ever touch that app. I don't think most of my friends/family know it exists.
Multiple apps on the same screen ... on the only tablet in the market worth considering. Again, this is a gripe about roadmap order and not an effective argument against the core claim.
And core to the claim is the fact that Apple is often late to the party.
> None of these are things that take years to get right. Apple commentators simply get lazy and recycle this iPod-era talking point.
I don't think anyone is making the claim that these things take years to get right. More interesting than this would be to examine what they chose to ship instead.
If you don't believe the iPhone, iPad, Apple Watch, MacBook Air and AirPods are market-defining products, we'll have to just agree to disagree. It's not as if the iPod was the last product to resemble the "Apple does it better" pattern.