* Install UX (how difficult, what pop-ups).
* First time user experience.
* Launch speed.
* Consistency with OS (such as using native file dialogs, hotkeys).
* Export Options (perhaps compatibility too).
* Spellchecker (especially if the OS is configured in another language than US english and the processor can detect it).
* Input latency.
I wonder if there would be more, though of this list I think LibreOffice would do very fairly compared to Pages.app and MS Word for Mac.
Disingenuous? More like realistic.
I mean this ultimately boils down to “is inconsistent with the design of the rest of the computing experience.” People who care about good, consistent design and can afford to pay for it are Apple’s core market.