While that is an unfortunate situation, I would actually imagine Amazon's entry to this market (which they actually entered over a year ago), would be good for the restaurants. Many thought they had some diversity in the early days with Grubhub and Seamless until they merged. Now there are dozens of services overlaying to deliver for restaurants, companies like Uber Eats, Foodler, Doordash, Postmates, and many more.

Amazon here is a me-too play here, and I'd be shocked if they reached the concentration to sink a restaurant given so many incumbents.