By your interpretation of the term, we might as well think of any mouse as providing a touch-based interface. You’re touching it, after all, and it responds based upon where and how you touch it. Therefore, “touch-based”. Except not really.

And yes, because Apple has made “natural scrolling” the default, and because Apple, as a company, is notorious for trying to push its idea of how things should be done on its users, the OS is just as broken as my hypothetical touch-based OS with its inverted scrolling logic. Nobody would want to use such a thing, and thankfully most companies seem to know better than to try to build an OS (touch-based or otherwise) that has inverted scrolling logic.