Yeah that's called a picture that doesn't have proper perspective or ratio, its not holding one in your hands. They are further apart in the new design and perfectly fine to hold. I'm not getting excited, I'm just pointing out that they did improve the design. You can't know if they're comfortable before holding one in your hands. Also I have pretty big hands but if people are bumping thumbs holding either controller then they're holding it wrong.
I loved the 360 controller but the PS4 controller is a massive improvement that finally brings them up to par. Now if Sony can finally get some signed drivers into Windows then I'll be quite happy.