I mean that’s the thing - it does happen, but those people are already being caught
And once they catch one, they catch a bunch of others that were part of the whatsapp/telegram/whatever group.
They don’t need these backdoors to catch them, because the ones caught like this are the stupid ones they will catch regardless.
Worse is the other way around, but if you then speed because the system doesn’t work, it’s of course still your own fault.
I know why they want it and I mostly agree, but they’re massively downplaying the reliability concerns, saying it is “usually correct” (It’s not) and “data will improve”, conveniently ignoring that these underlying systems aren’t new and the data has consistently sucked over its entire lifetime. They don’t provide a target date by which they want this data to be available, so it will never be.
Anecdotally, on a 30km drive, my car (which receives updates to nav data over cellular) is wrong 5-10 times, in both directions.