You can't blame a dog for licking you.
That's because it is a *dog*.
Law enforcement wants every tool it can have to do its job.
Law enforcement consists (largely) of people. They are not dogs. We expect people to be able to make moral decisions. So yes we can and should blame the people.
If I was a signals intelligence person, of course I'd want to be able to tap ALL the phone lines.
Why? Do you have no moral compass or do you just not believe in a right to privacy? If your moral compass switches off as soon as your employer changes, then it's not a moral compass, it's a moral yo-yo.