Earlier quoted context omitted.
As your comment rightfully deserves due to language and general non-contribution, you've been down-voted into oblivion. Nevertheless, educating the uninformed is a public service, so here goes: amongst professionals and connoisseurs in the watch industry, the "knob" is called a "crown", so they have every right to call it that; they didn't just make it up.
To defend my position: They're not calling it a "crown", they're calling it a "digital crown", and digital knobs are common place objects that already have a name. If I build a car with a joystick instead of a steering wheel and call it a "digital steering wheel" everyone would say, "No, somebody invented that already, it's called a 'joystick'"... they would not say "I am going to educate the uninformed and tell them…
The crown on watches and the crown on Apple Watch look the same. It's a crown with digital functionality. Thus, the digital crown.