For what it's worth, and as only an enthusiastic visitor to Canadian shores, I'm not counted amongst those who might have an active say in the matter, but, as I outlined above, I do think that naming a public edifice after someone who has been killed whilst on duty and in service of the wider community is a fairly permanent (in this somewhat impermanent world) recognition of their sacrifice.
.... and no, I don't think that being killed in the line of duty is part of the job spec for any line of work, no matter how hazardous.
But, before this thread heads for Jet Blast territory, I do think that it would be wholly appropriate to name a hospital, specialist treatment centre or other medical facility in order of any medical professional, irrespective of their role, who have likewise been unable to return home to their family at the end of a shift, whether through violence, perhaps infection or other unfortunate circumstance.
In closing, it is said that there are many who pass this way with no memorial to their having lived other than a world made better for their having passed this way, but to do this to the best of your ability may well take a long lifetime to make such an impact. It seems to me that naming a structure or facility in honour of someone whose life has been cut short seems appropriate, as this may have robbed them of their chance to make the world that better place.