That's just fundamental. It's not surveillance state stuff.
At one time, this problem was limited to a smaller population of cellphone users. Most people in one of these horrible car accident situations, etc didn't have access to a cellphone, so they just died.
Now, landlines are a thing of the past, so calls from office buildings, homes, etc are coming in without actionable information.
Speaking on the disappearance of land-lines, another issue is the increase of VoIP subscribers. Keeping address information up-to-date is the responsibility of the subscriber. If they take their VoIP service to the cottage, and call 911, emergency service could be dispatched to their home residence instead.
That may be, but not being able to locate people in an emergency is a legitimate problem, and it's happening because people are ditching their landlines (which did have known locations).
I live on the shore of Puget Sound in Washington State, right by the water. This means my cell phone is much more likely to connect with a cell tower on the opposite shore -- and people on the opposite bank get connected to cell towers on this side. This means depending on a cell tower for location is totally misleading for all these people. The only people who can be automatically located are those who (a) have smartphones with built-in GPS, (b) the GPS location is set to be included with each call, and (c) are outdoors when they make the call.
It's a mess, and conspiracy theories aside, it needs to be fixed.
To get that kind of data from your OS to a 911 dispatcher simply by placing a call would be to concede the ability for that kind of data to be leaked over telephony at all, or otherwise constantly uploaded to telcos/authorities.