If they made this change I imagine the number of people who actually toggle the radios on and off a lot (manually, not airplane mode) must be very small.
I’m sure th know how many people have written them about the ‘I ran up my cellular bill and it’s your fault’ thing too. I know I’ve heard that from people.
It’s a change from what it’s been doing for 10 years but I think it makes sense.
Folks who worry about, say, wifi and bluetooth walk-buy surveillance are going to be much more likely to opt-out of just about anything they can, including usage instrumentation. So of course they'll be underrepresented in statistics generated from that data.