If you want to secure sailors' phones you are going to have to do a lot more, and at the same time much less, than ban or transfer the ownership of one single app that happens to be used by over a hundred million civilians.
GasBuddy (and Life360) just sold that same ___location data to brokers, which Allstate bought and used to adjust premiums. Practically every app that is given access to ___location info is selling it, and it's widely available to anyone with the money to buy.
Maybe we should have some sort of General Data Protection Regulation law instead of hand-wringing about social media.
That’s the world we live in today. Under many countries’ privacy laws, it’s not legal to sell PII to a third party that you collected for a specific other purpose (e.g., fulfilling the primary purpose of the app). The problem is that they do it anyways.
If I agree to let FantasyCorp sell my ___location data, and then they follow through with our agreement and actually sell it, then there's no problem here that I can see.