Opt+the arrow keys move from word to word like in pretty much every application, but when you add the Shift key you lose that functionality and end up going through each character. This is a super useful thing to select a few words quickly, and it's even more helpful in the code windows where often more than you want gets selected by double-clicking.
Also, is there an official place to post feature requests? The wish list page doesn't have Edge Animate listed, and the actual Edge page said to do it here, but just in case...