I think you're reading "reinvent" here too literally. I doubt the OP literally thinks that Jobs personally designed every part of the iPhone and simply directed mindless drones to just do the dirty work of manufacturing it. But I think it's fair to say that Jobs' vision and direction of what the iPhone can and should be absolutely "reinvented" the category of "smart phone" for the masses.
And I think it’s fair to call that revisionist history of the worst kind. It wasn’t his vision at all. Someone else had the vision and had to sell Jobs on it who was initially skeptical.
So are you saying that had Hullot taken his ideas to any other company, the result would have been the same phone? Again, no one is saying that Jobs was solely responsible for the things Apple has done, or that other people weren't major parts of that. Even Hullot's own words tell us that the phone design he had in mind was not the touch based keyboard-less design that the iPhone became[1]:
In 2006, Steve decided to make this telephone: the iPod was on the decline and
he had the brainwave of producing a laptop without a keyboard - something that
was unthinkable at the time, and which caused quite a stir at Apple. We were
a secret project, barely known to Apple France.
He says he pushed the idea that Apple needed to create a phone with "the equivalent of Mac OS 10", but that's a very nebulous statement, that could range from iOS style to WindowsCE style. But again, no one who talks about the vision Jobs had for products (or at least no one who actually knows Apple history) believes that Jobs himself was responsible for everything and handing down fully formed ideas and designs from on high.
