The model you linked seems to have a backup battery and supports scheduled feeding, so I wouldn’t worry about a HomeAssistant failure too much.
By setting the plans or schedules, the pet will be fed in a regular pattern. Compared to the competition, the function will work even when no internet connection or when the Zigbee hubs goes down!
The model you linked seems to have a backup battery and supports scheduled feeding, so I wouldn’t worry about a HomeAssistant failure too much.