I'm more concerned about whether the store system gets my order right than whether I do. What if it, e.g., mistakes a can of soda for a 12-pack? Three hundred times on the order?
There's a link to dispute the receipt should something happen, right on the receipt itself. Now this is specifically Amazon Go app, but I would expect it to be same for other retailers.
Edit: I see that this is a little bit different than Go stores. It's far less convenient, but you can still get the receipt in your email by visiting a kiosk it seems.
Would it?
>easily reversed based on video data
That suggests a level of effort from multiple parties well in excess of the typical "look at item; look at receipt"