quick, let's notify the future shooter how government may track him so that he'll take the exact necessary steps to not be caught before committing a shooting. and the foreign spy. and the person who plans to sell/traffic illegal items. they deserve a right to know exactly how the government tracks them, after all
how do you catch criminals if they know exactly how the government would catch them? saying the government has nothing to hide if it has nothing to fear is very wrong
so your solution is for the government to notify people of those vulnerabilities so others can immediately take abuse of them? because people know that the government makes backdoors on a lot of tech, it's no secret to people, your "solution" wouldn't exactly achieve anything. the current government doesn't care about collateral so it's not like they'd just stop doing it.