It would be lovely if people read the articles instead of posting beforehand.
I saw this on macrumors, and the article was badly written as it seemed as if he used it for his product images.
But no worries, I shall not judge your actions.
Here's a lovely quote from the Verge article:
"In the studio I shoot with a Phase One digital back with a Sinar X view camera, and Phase One 645 camera system."
The 5D3 is his go-to camera, not the one he uses for Apple's products.
Have a lovely day.