@Jasmine - I just read the patent and here is my opinion. (I'm not a lawyer, but they worked for us and I used to have to do a lot of patent related work as a research engineer - a very long time ago).
You are perfectly safe ... Unless you plan to open a studio that uses their specifically prescribed and fairly detailed set up e.g. 10:3 ratio of light intensity between rear light elements and foreground elements, and at approximately 3200K, on a platform, with a white background that will be seen as pure white - RGB (255, 255, 255) on the inter-web, such that the effect is that your subject appears to be floating over a white seamless background and you plan to use this set up to photograph and then sell products on ... eBay(or any Amazon competitor) ... or Amazon chooses to establish retail photography services for vendors (or perhaps for individuals) so the vendors have access to a quick and easy way to get their products onto the Amazon MarketPlace AND you plan to offer competing service to the same Amazon vendors using the exact same technique.
So, if your intent is to use that specific technique to compete with Amazon, then yes, worry. Otherwise, politely roll your eyes at Amazon.
Why did I see it this way? Because they emphasized a reduced need for post processing - I worked a bit as a freelance photo editor. Do you know what is the number one global, freelance request for photo editing? Cutting away backgrounds from products - some parts of the world call that "etching" or "deep etching" and it is a requirement for some to place their products on the Amazon Marketplace....
Patents are pursued for business needs and are only useful if the patent holder is willing to sue someone for abusing his/her patent OR the patent AND threat of litigation is a deterrent to someone abusing that intellectual property right.
Whooo .... I need to catch my breath. In short, I think you are fine .... Unless you are Jasmine-the-Amazon-Competitor. Then, you're in trouble.
So, you're fine, unless you're not, based on the aforementioned criteria. Which reminds me of the famous words of wisdom spoken by Mr. B. Banzai - "Wherever you go, there you are."
Does that make sense?