There’s an argument to be said in favor of it, which is: Apple has five operating systems, and they should look somewhat the same. Currently, bar fonts, they do not. So this is an attempt to make everything look the same, which helps for both branding (you know you are looking at an Apple thing) & system governance (Apple edits one thing somewhere, it changes everywhere).

It is also something nobody asked for, because ultimately people care how a thing works, not how a thing looks. Was anyone saying the design of any Apple product got outdated? But no, every six years or so we get a new thing, because trend demands it. Fine.