Why are you referring to the units of mA for "power", as opposed to current draw? The power consumed would be measured in watts or milliwatts.
For one thing, it's the current that you usually measure in these cases anyway. For the other, power consumption in watts is not what you generally want to know when you design a battery-powered circuit. And, last but not least, it's more useful to have a figure in (m)A than (m)W when batteries are rated in mAh.
It's not correct terminology, mind you, but then neither is that of energy in your energy bill, so I guess this can be forgiven.
[1] https://github.com/geerlingguy/raspberry-pi-dramble/wiki/Pow...
The reason that these terminology and units were used by OP was because at a fixed voltage it is common for engineers to think about current instead of watts... even when their aiming to reduce power.
I'm not sure of the exact reason for this, but I suspect that it's because:
a) Measuring current is a more fundamental function of instruments. Quite a lot don't even measure power. So talking about current instead of power, even when you're aim is to reduce power, makes for a smoother process from a practical sense.
b) Batteries are usually measured in mAh. At lower power/currents you're usually using a linear regulator and therefore dividing mAh by mA is a very important measure. So you often keep everything in mA.
Voltage and current are easy to measure with a pair of multimeters, so it's more useful to have those numbers than wattage.