The iPad has fallen short.

Gruber feelings on the iPad:

The iPad at 10 is, to me, a grave disappointment. Not because it’s “bad”, because it’s not bad — it’s great even — but because great though it is in so many ways, overall it has fallen so far short of the grand potential it showed on day one. To reach that potential, Apple needs to recognize they have made profound conceptual mistakes in the iPad user interface, mistakes that need to be scrapped and replaced, not polished and refined. I worry that iPadOS 13 suggests the opposite — that Apple is steering the iPad full speed ahead down a blind alley.

I agree with Gruber that the iPad has not lived up to its original mission, but don't think the future is as dire as he paints it. Apple can still course correct things. The question is, though, whether they will.