>>My fear is that by writing blanket untrue statements like this, people that don't know better just read it as fact, and spread it.

You are right! "people that don't know better" should do their own research on whether Google Location services ask for their permission.

Here are few links:

"Google records your location even when you tell it not to" https://www.theguardian.com/technology/2018/aug/13/google-lo...

"Google Collected Data on Schoolchildren Without Permission" https://www.wired.com/2015/12/google-collected-data-on-schoo...

"More than 1,000 Android apps harvest data even after you deny permissions" https://www.cnet.com/news/more-than-1000-android-apps-harves...

"Thousands of Android apps can track your phone — even if you deny permissions" https://www.theverge.com/2019/7/8/20686514/android-covert-ch...