I get it, but
I get it - better 'legitimate' security bodies use approved known methods to access devices than continue the arms race of encryption and backdoors. And yes, I'd prefer it if they worked within a rigidly defined legal framework with proper scrutiny and, subject to a time delay,public review.
BUT. Until these bodies are subject to true scrutiny and working in a legal framework, I don't trust NSA, GCHQ or any similar agencies not to misuse the data collected.