"But there is no apparent fallout from this for CSIS yet. While the spy agency says it will stop analyzing the contentious data, there are no indications that it will destroy the data." It's not really illegal if there's no enforcement, is there?
Ignorance of the law is no excuse. ... for me. Not for them, apparently. If the people enforcing the law aren't required to know or follow it, why am I required to?
Many crimes require both actus reus (guilty act) and mens rea (guilty mind).