Not an app developer, no. You are probably right. I was thinking too much in the sense of image cropping, resizing and changing ratios instead of windows containing elements.

But the screen/window size and lost pixels was not the only point. I am not convinced that the status bar holds any such information that you'd need to be able to see all the time. If the information was harder to obtain than the peek gesture I'd understand but currently I don't see the benefit of an added status bar.

In any case, I doubt the status bar will be an upcoming feature, even as an optional. To my understanding, the absence is a design principle plus according to the lack of TJC upvotes, not that greatly missed.