Read most of the comment, was hesitated. Then thought "it can't be that bad". Ok, it is that bad. I absolutely hate extra round corners and extra margin in the windows. Sigh.
I usually agree (and enjoy reading angry threads years later), but wasting screen real estate and getting measurably worse in terms of accessibility is simply not a good design decision.
People will get used to it. Apple will refine some things over time.
It will be ok.