I don't want to dig up the figures (because I probably can't find them) but I ran a test using these tools about six months or so ago, because the wife kept complaining that her Android phone had no problem connecting to the WiFi extender when she was in her study, but that the iPad wouldn't connect but that it did connect when she was closer to the WiFi extender.
She kept insisting that the WiFi extender I set up was not working.
I used these tools to prove to her what the problem was, and, she has learned to live with it.
But the point of telling this story is that I agree with you that the tools are wonderful for showing what is really going on and making good decisions instead of just guessing and assuming the equipment is "broken" (there's nothing wrong with any of the equipment - I've proven that in other ways). It's just the way it works and is designed, and there's nothing you can do about it.