Unfortunately, that was before the greedy bean-counter, Tim Cook, took over. The fact that iPads essentially run a phone OS has been deservedly lampooned and appears ever-more-ridiculous with each passing generation.
Steve Jobs promised (from 8:30 to 8:42 in the video above) macOS/OS X on iPhone 1:
"iPhone runs OS X". That's what he said, that was his words. This was almost two decades ago in 2007.
But we got iPhoneOS, iOS, iPadOS, etc. all of them are just bloated downwatered dumbed down OS X.
We don't need 120hz oversized displays with a notch. The iPhone needs macOS, like Steve Jobs promised.