To echo your point, the screen shots from the original article bare this out. The new App Engine interface does express information hierarchy through type, but

To echo your point, the screen shots from the original article bare this out. The new App Engine interface does express information hierarchy through type, but it does so badly. The side menu uses all three of spacing, text size and colour to indicate hierarchy, to the point where the lower-level items are nearly illegible. Skimming it, I got the feeling the designer was saying "You don't need this", rather than "You won't need this often" or "Y is a specialisation of X" (which was probably the intent).