Why do you wish for the iPad to be a Mac?
I can’t speak for him but I think of it like this: Apple hasn’t been able to differentiate iPadOS from their other iOS implementations and as a result the iPad is somewhat limited in what it can do. Apple has tried maintaining a strong link between iPad and iPhone, but that appears to be a roadmap that’s played out. In order to extract more power and usefulness out of the device some of us believe that taking it more towards MacOS is the answer. Actual folders and a legitimate file system would help make it more useful. Multi-user accounts would make it more useful. There are many aspects of MacOS that iPad should be able to handle but doesn’t due to Apple’s insistence that it remain within the iOS locked down framework.