All that space devoted to Mac Pro configurations, when the current Mac Pro is virtually EOL. Haswell Xeons are already widely available for Apple to update the Mac Pro after the holiday season (and return window) ends.
I'd like to see the sledgehammer impact Windshield B. The result isn't pretty or it would probably have been shown. My guess is the entire Gorilla Glass layer shatters and completely obscures the view.
In my experience, Yosemite is the best major update I can remember. And I'm running Server, too. (Normally I wouldn't update my Server systems until .2 or .3, but the "desktop" version of Yosemite was working so well that I took the plunge at .0 and had very little trouble--far less than when updating at .3 in the past.)