There’s a good few places where I don’t need to measure energy because the appliances under control are lights. In those cases, I can either use the consumption figure from the packet or connect my portable monitoring plug for a few hours and get a usage value - it’s probably more accurate than the type of monitor you can fit into a smart device anyway! Obviously doesn’t work for variable loads, although even some of those (washing machine, dishwasher) use a similar amount per cycle even if I don’t know what they are consuming at an instant.
There are a good few appliances that I need to use and use them when I need them so knowing what they consume doesn’t inform any decisions. I have enough data about the house without adding more that doesn’t provide any value!
I can see the IP address and MAC but not what it is doing. Look like there’s progress being made here using the Broadlink protocol so hopefully a binding on its way soon.