Apple's iPad Pro page missing transparencies on all images [video]

I just visited the iPad Pro page (http://www.apple.com/ipad-pro and YMMV right now) as any self respecting fan boy would, and discovered that all of their images are missing the PNG transparency that should really be there. How did this get missed in QA? Captured video to prove it happened.

Looks like it works OK in Safari and Chrome, I looked at it in Firefox.