Did Amazon just patent the seamless background setup?

Can someone with some method patent experience tell me how this would be enforceable? Unless someone was in your studio, and saw/videoed/photographed your setup, how could Amazon claim that their “method” was infringed upon?

“You’ve got no shadows! …you must have used our patented methodology.”

IMHO, if you are a studio shooter and you can’t suss out how to effectively remove shadows from your background, you may want to consider a new vocation. So, what am I missing here? Granted, I do not live in the US, but I am a tad concerned that this madness could “leak out”.

Or is this just because North America has too many lawyers and this is simply job creation?

Source Article from http://www.dpreview.com/news/2014/05/06/did-amazon-just-patent-the-seamless-background-setup