Look I agree the guy is a miserable human being, and I totally find his bashing others pathetic and reflective of his own shortcomings, but he does point out one of the issues with iPadOS. It could just be Microsoft or iPadOS but an example I have is how terrible the experience is using the Office apps on my iPad with Magic Keyboard vs just hopping on my Mac. Don’t get me wrong, I’ve said many times if I wasn’t in school my iPad would be my only computer. I just think iPadOS is way too restrictive considering the hardware Apple has been delivering.
He isn’t even trying to open a Word file in Word, try doing the same without installing Word on your Mac, you will have similar results. If you are going to make an example of “how iPads are restrictive“ don’t make a situation up that is only restrictive due to user error.
As for Office, it is a terrible experience and unusable for anything more than light use even on a Mac so it isn’t surprising that it is terrible on iPad OS as well. Office needs Windows to function fully.