Wouldn't that sort of defeat the point here? Contact tracing apps want to use location data to know when I might have been in contact with someone. If you do s

Wouldn't that sort of defeat the point here? Contact tracing apps want to use location data to know when I might have been in contact with someone. If you do something like round the data to a suburban neighborhood or a densely populated city block in Manhattan, you can't effectively contact trace. Any granularity of data that is useful for contact tracing would seemingly raise the same concerns that are leading to them banning this.