In theory this sounds like a good idea. IN THEORY! I could see potential abuses. Not often, but it could still happen.
I haven't read the actual wording in the proposed bill, so I will reserve any opinion of it for now. I do not have a problem with revoking the citizenship of mass murderers who never should have received a passport in the first place. I realize nations need to protect themselves. If it is extended beyond those narrow parameters it can be open to interpretation and abuse. As I said, I will reserve judgement until reading C-425.
Maybe it could be expanded to giving passport ho's the boot and scammers who hate Canadians too.... Instigator and those who spy for China