Not really. A properly designed network should take account for such things as unknown/irreparable flaws. An irreparable backdoor in a device can be mitigated with a gatekeeper, something akin to a firewall that will not allow a threat actor to have access to a faulty device.

The real recklessness would be allowing an ATM unfettered access to the internet on the assumption that the manufacturer has already protected the device from every known and unknown threat.