I think it goes deeper than that.
If you look at his screenshot of layout 2 above (just as an example), see how the folder tree is a tiny little rectangle in the top left corner? How is that usable? It's only tall enough to show 4 1/2 lines of the folder tree.
Look at the screenshot of layout 6. The Category Sets area is so short it can literally show nothing.
Also, if you select layout 2, and decide you don't like it, and then look at layout 5, and play with it a bit, change some things, and then go and try and load layout 2 again, layout 2 will be different from the first time you looked at it. Why does that happen? It is confusing.
Maybe it's not confusing if you understand what it's trying to do, but since the feature is undocumented, who fully understands it except you? What regular users know is that it does weird things like in the screenshots above. If I made screenshots on my computer, the layouts would look a bit different but just as unusable.
Just as an example, I selected Filmstrip1, and took a screenshot. Here's the layout it produced:
Filmstrip1.jpg
Is this working as intended?
The browser shows less than half of one image. The toolbar buttons over the browser are about 2 pixels in size; totaly unreadable. The directory tree pane is so narrow you can't see where you are, and you can't see any metadata at all because everything except the labels is cut off. But at least the Categories pane has plenty of space, doesn't it?
I understand at this point you could start to move and resize panels, but my point it, if you just select a numbered layout, it's unusable "out of the box".
I think what people expect is that if they select one of the numbered layouts, it is always going to produce a usable layout, and that each number will produce the same layout every time. (Both of those things are false as things are now.) If you want to change then, that's what the saved presets (A-E) are for.
It seems to me, that each layout should have some pre-set sizes (% of application window size) for every panel, that are actually usable sizes, so that the directory tree never shows so small it's unusable like in his shot of layout 2. Or so that the Metadata panel is never 4 times bigger than it needs to be, like in his pic of layout 6.
I also think it would be a good idea if there were a Filmstrip 3 that more closely resembled Lightroom, and allowed a stack of panels on the right side.
And I think it would be good if some of the restrictions on moving things were eliminated. For example, in Layout 4, the Info Panel just can not be moved.
That's just my view, but I think there are a lot of improvements that would be needed for the feature to make more sense and be more usable.
But perhaps I just don't understand. That's why I suggested that if you wrote a guide about how it's supposed to work, that might help.
I didn't want to get into all this now, but since you asked...
