Of all the Linux features to copy, they chose this.
This comment explains how to do it: https://news.ycombinator.com/item?id=46585551
I have often felt like GNOME is the most Apple-y of desktop environments; they're very form over function. Not surprising to me at all that both would pick a design that seems beautiful until you try to use it.
Now I guess it's Apple's turn.
Latter versions significantly improved it.
Any reason why you're not using it?