When security breaches can kill people, you'd better be able to prove that lack of convenience kills even more people, and that there are no other options.
Without endorsing the NSA's actions, no. Clinton's reckless disregard for security led to a dangerous breach of protocol. The fact that anyone else might have done the same in that situation makes not the slightest difference to me. If no one will give you a parachute, do you say "screw it" and go skydiving anyway? No, that would be stupid. The reason for the refusal is immaterial.
Without endorsing Clinton's actions, lets learn from this.