I’m using Home Assistant and none of my IoT devices get internet access, except Home Assistant, blocked by a firewall in a separate vlan.
If I want to depend on an internet connection and foreign company servers I could use Alexa or Google Spying Stuff with a breeze.
But I paid a lot of money for network devices that are on a pro level and support things like VLANs.
So if a local working, cloudless IoT device depends on a stable internet connection and permanent connection to foreign cloud server, in which World this would be a feature and not a really ugly bug?!
Or is this like Hue, where you need a cloud account, to use the local API, for security reasons? 
Or in other words… If the ionos servers go offline / become unreachable, my local Wi-Fi disconnects and my local home automation can’t lock my front door, because it is a feature?! Really? 
If Facebook can become unreachable (2021 Facebook outage - Wikipedia) for hours. Why this never could happen to nuki?
I hope this bug will be fixed soon. Otherwise, I’ll buy another system and no nukis anymore, what would be disappointing.