[Citation needed]
I don't buy this argument. And I also don't buy that iPadOS is "kneecapped". They're different operating systems for different uses. I'd hate for macOS to gain touch support, since it would ruin it for mouse and keyboard usage, just as happened to Windows, Gnome, and other desktop UIs.
The basic kindergarten math that having your customers need to buy an iPad plus a MacBook to have their needs covered, instead of just an iPad with more power-user features or just a MacBook with a touchscreen, equals more profits for them.
Do you really need a citation that Apple would much rather make more money rather than less?
Users buying an 1TB iPad Pro with keyboard, AND, a MacBook Pro to do the things the iPad can't do even though it has the same CPU.
Cha-ching!
To compel families to more iPads.
It wouldn't be able to distinguish between a Close or Minimise action on every single titlebar.
It makes no sense.
Can you really look at the Final Cut Pro example given in the article and say, yes, this is the smooth user experience that Apple is aiming for?