It is awfully hard to make an informed comment without actually seeing the photos. The family's intent seems to be decent. The Canadian authorities seem to be trying to protect children.
A well intentioned photo taken by the parents that shows no more than simple nudity would, I imagine, be quite stimulating to a pervert if it got into the perverts possession and could result in an injury to another child
Given what seems to me to be the lack of ability to guarantee the behavior of someone who hurts children I would, with appropriate safeguards, not find myself getting upset..but I would be concerned..with capital punishment for serious deviant behaviour that causes serious injury to the child.