I mean this in the most respectful way possible, but, your concrete flaws are that you believe it's just designed for the sake of change, it animates too much, and that a font is too small in one place?

For what it's worth, the underlying usability really is very well explained and pretty sound in the material (no pun intended) from Google on MD. Eg: http://www.google.com/design/ in the top 2 items.