I’d even feel guilty about selling an IoT pet feeder that doesn’t have a backup battery. Internet/server outtage is a thing, but power outrages happen too.

Can we be sure these feeders even used https or validated the certificates? I’m sort of joking, but with how poorly designed so many IoT devices are, I wouldn’t be surprised even if they did have a RTC. The hardware capabilities being present doesn’t help when the real missing pieces are competence and concerns for reliability/pets/customers.