They had a couple whole home solutions that worked. One of which I have and still have hooked up and am using, just not with Iris. My power bill is almost on par with the reader (+/- 5KWH variance). I've had it installed at my current address for 3 years now, no issues besides having the batteries in the sensor for the meter dying out every few months (which was from using cheap batteries, switched over to Lithium batteries and haven't changed in over a year).
I am able to get the temperature outside (measured at the power meter), a real-time usage, and a usage per hour. I'm able to look at the graph and note when certain appliances are turned on. I can tell that my water heater turns on every 30 minutes for about 5 minutes in total to bring the temperature back up to 120F, I can tell when the dryer element is cycling on and off, I can tell when the compressor in the heat pump has kicked in, all by the amount of energy used. But Lowe's decided to drop support for it. Same thing with the other unit that was supported via V1, which was even more accurate.
The short time span is also a lie. It's been almost a year now since V1 was shut down. Sure some of V2 has gotten better, but there's still more issues and missing features that should have been implemented from the start. From my perspective, a "short" time span is about a month or two tops. It took me less than a month to write and develop code and circuitry for a project (unrelated to Iris, but required similar abilities). That was not knowing a thing about C++, and not having designed circuitry or done any engineering work before. All while only working on the project in my spare time after working a 10 hour day. Including debugging and testing the code on the actual device. It's taken the Iris team almost a year to give us a half functional Web UI (which another user has developed a working one before), and half functional features.
And as far as the Q&A, that answer of working on a whole-home solution doesn't match up with what was stated on the official Iris community forums about "not being enough demand and users on V1 to justify the feature on V2". Iris limited the number of users by not supporting one of the solutions that worked with V1 officially until 2015, and by not carrying the other working solution but in very limited stores. They self-restricted the demand, then blamed us for the lack of users.