you're missing the point......on Amazon the review is for the product. The product may be sold by many sellers, some good, some bad.. I agree with you that service(the waiter) is as important as the item but often times the service on Amazon is not provided by the manufacturer. ....Soooo blaming the steak or cow would be incorrect...
There have been posts on this forum slandering an Anker product because someone bought an item off Amazon and were refused satisfaction from the seller, NOT ANKER........The 3rd party seller will respond or maybe not and this should not affect the product or the manufacturers ranking. That's why the seller review is separate.
It's just the way Amazon sets it up..........I would definitely blame the pub in your above example as ultimately they are responsible for whom they hire............So I guess we should blame Amazon for a bad product or service as they allow them to sell on their site.
Ever try to leave a review about your Amazon experience rating Amazon themselves.....If you find a way let me know.