Totally agree with your comments.That's true in the commercial world. In residential, the software/cloud is usually free. They use it as an incentive to sell the physical product.
There's really no other feasible way for this to work. Trying to get Joe Homeowner to setup port forwarding on their router is a non-starter. Then if someone breaks into that little appliance they sold you, now you have a public relations nightmare. Sending data to the cloud is the most customer friendly way to get this done.
Cloud services are not free, but they are extremly cheap. You can process and store a tremendous amout of data on a cloud system for not much money.
The shell game is, they need to keep selling product to support it. If the product fails in the market place, then all those who bought in get screwed when the shell game falls apart and the cloud service is switched off.
There is electronic trip on the Leviton breakers. I can push a button in the app, and it'll trip the breaker. There's just no electronic reset, which is disallowed by UL. That's why SPAN does it with relays after the breaker.
If you are so inclined, you could look into the Shelly's pro grade WiFi relays. They are DIN mountable WIFI relays with power monitoring. You would of course have to run your circuits into a home-rolled system after the panel, but the Shelley's relays have an open API that work with Home Assitant, so you'd be in control of everything, no cloud required.
Professional Series
www.shelly.cloud
One thing that a lot of of cloud services run off of is the data too. If that data has any value that can help keep things going can help fund things too.
Free email services have been around for a hell of long time now.
Doing your own server etc. is a non starter. Too much work. And I work on that stuff for a living. And even having the hooks is not worth the trouble. Those days are long gone.
Note that the Leviton App for the Panel is one and the same with the App to control Smart Devices Leviton sells. I’m sure a lot is shared between smart devices and smart panels. So the added overhead to support the panel is not that large.
Smart Switches better work for at least 10 years, if not 20, or they won’t be in that business. And I think it’s a big business that’s growing.
Probably have a $1,000 in smart switches ~$50 each.