Earlier quoted context omitted.
This is the company that popularized the mouse and GUIs, why are you shocked?
Because it's stupid. Why would accessibility features enabled by default on Windows and Linux be disabled by default in MacOS? There is literally zero advantage to disabling it, and it makes life harder on users. Same thing with tap to click. Once everyone else enabled tap to click Apple disabled it. They just HAVE to be different, even if it's bad for users, and that stubbornness is frustrating.
I agree that it would be nice if Apple would have more keyboard navigation available by default now than they did then, but given that it is readily available for those who want it, I don't really see it as a huge issue.