Disagree with definition of IoT, only fools build IoT with IP access. IDIOTS.
IoT is edge true.
We use LoRa modems to connect with a main LoRa hub, example IoT.
But it never talks direct with IT systems.
That would be mad from a design point of view.
To many attack vectors.
This LoRa hub represents many edge nodes and uses secure technology
to talk over TCP/IP to the back end.
We pick MQTT for this over TCP/IP.
To say all IoT uses IP is mad and totally wrong.
The understanding of IoT & IT is easy to see, when you build systems.
Most folk don't understand the difference.
We don't let 100,000,000 IoT edge nodes attack the IP infrastructure that would be madness people.