Comment by nine_k
Exactly my point. It was too hard to make the grab box different. It was not too hard to pretend that the hyper-rounded corners would also make some layouts look and maybe act problematic. It was not too hard to splurge time and effort on liquid-glassing the entire UI toolkit.
In a word, it's hubris. It's not care about the user, it's not even care about market domination or setting a fashion trend; both have been flunked. It looks like somebody's ego needed an affirmation, or someone's grip on corporate power needed a demonstration. It's a bad, bad sign of a deadly corporate disease.
Agreed. I think you may be too generous with hubris -- that requires agency, but it may just be incompetence. I don't generally like the "old days" argument, but this is consistent with overall trends -- it's frivolous.