This is not okay. The only ethical way to do telemetry is opt-in. If not enough people are opting in, you need to incentivize them to -- most simply by just paying them for their data. After all, telemetry is "valuable", isn't it? But if you can't figure out how to convince people to opt-in, then tough luck, sucks to be you.

Opt-in or GTFO, Google. I'll be patching this out of the Alpine package for Go the day it ships.