It is extremely frustrating to watch "connected" "smart" devices repeatedly do exactly what we knew they would do, and yet nobody ever learns a damn thing. People will keep on buying Internet-connected devices, manufacturers will keep making them, this sort of thing will keep happening, and the rest of us will struggle to even find mass-manufactured things that are not Internet-connected and "smart".
Even devices that are pretty much for "self-hosting" are increasingly trying to sneak in cloud-connected back doors, like Synology DSM trying to sneak in cloud authentication to your local NAS. Stop trying to make the devices I bought for the purposes of having locally-managed devices depend on cloud services! My local network is not just a fucking gateway to cloud services!