Spitballing here
One of the features that initially sold me on WiZ was the lack of a hub or bridge. Made setup a breeze.
Now I’m a full convert with the whole house decked out in WiZ, but with some intermittent connectivity problems. I’ve spoken to my ISP (Verizon) who have suggested that this patchiness could be due to the overwhelming volume of smart devices consuming bandwidth (75+).
Got me thinking - an optional WiZ hub that operates using the same Bluetooth signals that the remotes and motion sensors send, but which connects to the internet occupying only one IP address. It would be the best of both worlds!!