Worth noting that "crash reporting" is very much worth reporting on and paying attention to, as transmitting a lot of sensitive data in crash reports could be beneficial to fixing bugs (but obviously not beneficial to the indiviual's rights).
This sort of pedantic hand-wringing is tiring. Google sells many things, one of which is advertising. Firebase Crashlytics may be free, but it's made available by Google in the hopes that developers pay for Firebase's full suite of paid offerings—it's not to populate additional user data to their ad or search algorithms.
