I don't like it. I like the ability to move my mouse around without the page changing on me.
For example, some times I hover over what I read just to keep myself reminded where I am, and their "The Statistics" part REALLY breaks the experience for me. I want to, for example, click on one of the boxes, keep it pinned open, and move my mouse over to the white area and read without having it switch away to another box.
I agree we should cut down on the requirement of clicking, but I don't think it will work too well anywhere. Maybe touch screen interface would work, but aside from that, as long as we have a mouse attached to our computers, we should click it!