Seen on the replay here on camera2, it's preety clear that this ball should go in, but it just rolls over the hole like it wasn't there. The green is leaning from right to left on the shot, and it shows on the putt curve, so IMHO this is a stolen putt.
On the other hand if anyone has a reasonable explanation why tthis ball didn't end up in the hole socring me a birdie, I am keen to listen.
:)