You underestimate how important it is to (most, competent) governments to keep their citizens alive and how unprepared they were caught in this. This solution (if used) was better than flying blind and cost these governments nothing. It's not fair to pretend a government would not welcome contact tracing as-is if it helped provide a tool to stop the spread. Not everything a government does is out to surveil you, they have to still provide some other functions.
After a lid is on things though - yeah, maybe. Maybe they'll try to flip this, but not while their pants are down.
After a lid is on things though - yeah, maybe. Maybe they'll try to flip this, but not while their pants are down.