Another case of a smart home device that unnecessarily needs someone else's servers. They could've made it controllable over the local network and that would've solved, like, 80% of this issue.
I have a z-wave hub I bought about 8 years ago. Admittedly, it's shit, but it does one thing right — you only need the manufacturer's cloud services if you want to control it from outside of your LAN, or if you want integrations with other services.