Normally I'd just agree, but... That doesn't jive with the "intel-based" part of the original version, though. A desktop is a desktop, and while there is a type of compatibility that matters to most users it's not the processor. So why is that use fair but not the other?

Because the part quoted there is just one line that doesn't fully represent the case or the world in which it was set. At the time, there was no significant consumer market share for non-Intel-based computers. Microsoft had a monopoly on the personal computer operating system market. Saying that Apple has a monopoly on their own products isn't meaningful.