Just discovered a different statement by Apple:
"Unlike typical trackpads, this MacBook and MacBook Pro trackpad is a button in itself; you can click almost anywhere on the trackpad."
http://support.apple.com/kb/ht3211
So which is it, the entire trackpad is clickable or almost anywhere on the trackpad is clickable? Apple is making contradicting statements.
Honestly, I'm thinking it probably depends on your laptop. I can press mine anywhere. With that being said, if it didn't, it wouldn't bother me in the least as I don't need to click in the upper areas of the trackpad