A lot of the people working on these systems weren't working professionally when 10.0 came out. Most of those people have moved on. Apple is not the same humans.
A corporation is a shield behind which humans plot and practice their most deliberate, libidinous schemes of avarice, moderated not by morality or community, but only by laws and markets. And for that, corporations have lawyers, resumes and advertising.
It is a rare corporation that retains a soul for longer than its founders presence, because lawyers, resumes and advertising cannot sense what founders could: a creative future.