[NotAtWork]

The government currently kills people as part of exercising its policing powers, which most people agree are overly aggressively used.

If this lowers that rate, it's possible that the difference in beatings, shootings, and home invasions will be basically even, because there isn't a large portion of the criminal element which is waiting for better encrypted cellphones to do these things (hint: other things about cellphones make these problematic, and most depend on other evidence anyway when prosecuted), where there is a reason to think that police being restrained in using illegal investigation methods will decrease the rate at which police use other illegal investigation methods.