Isn't the explicit goal of a feature like that to be uncooperative with law enforcement? Who else is going to (attempt to) compel them to reveal user location data?
Not just that. Say they have a security breach... if there is no data, no data gets leaked.
It's not that they're trying to be uncooperative with law enforcement though -- the fact that it prevents law enforcement from getting location data is a side effect of protecting privacy from everyone (marketers, hackers, etc) rather than it being the explicit purpose of keeping it from law enforcement. Which is why they probably want to be very careful about how they word it -- because some people might see it as the purpose rather than the side effect.