It is bad design. The entire system control could be on a microcontroller inside the machine itself. There's no reason to route data through a cloud server just for basic functionality (other than greedy data farming, of course).
That's a single point of failure, and not even very reliable, for something that provides a basic necessity to a living being.
That being said, any pet owner who relies on an automated feeder and doesn't check it regularly to make sure it's working properly, is neglecting their pets. They share a portion of the responsibility here.
Still, I wish products marketed for pets were regulated better to ensure safety.