Your Safari example doesn’t work because even the iPhone 6 didn’t move any app content into the status bar. The only ui which that notch removed was the time.The ui around the notch is cutting off content that would of been there if the notch wasn’t there.
this whole .25”-.5” of content gone because of the notch even with normal webpages. It hurts screen Real estate because of this cutout in the screen. All I’m trying to get across. If the notch wasn’t there the top bar wouldn’t have to be pulled down like it is.