I'd imagine it would be important for "come back home" like functionality in case drone loses signal or whatever
> but there is absolutely no reason to use it for something like a phone stabilizer, which it absolutely requires and will not let you continue unless you turn it on
App making photos or movies using GPS to tag location of the photo is kinda common. Refusing to work without it would be sketchy tho, but "developer is kinda incompetent" is common enough...
Not saying it isn't malicious but those are easier explanations.
Hell, it could require permissions and not send the data now, just add that tracking in update...