I'm with you on that. There've been lots of changes to macOS UI recently. Many of them are expanded and more helpful messages. But there are also quite a few very strange ones such as this example. What ever happened to intuitive user interface? Is there anyone quality checking adherence to UI standards?
Sorry for butting in on the OP's thread.
Wow, I probably would have never known what this meant either. I can see it now though...the image is the back of the keyboard. Is it animated in any way? Do they show the front of the keyboard and show it being turned around?