Canadian Paralympian: I asked for a disability ramp - and was offered euthanasia

It's easy to think that any % > 0 is a sign of something having gone wrong. My default guess used to be that, too.

But imagine a perfect health system: when all other causes of death are removed, what else remains?

If by "terrible inadequacies of Canadian health care" you mean they've not yet solved aging, not yet cured all diseases, and not yet developed instant-response life-saving kits for all accidents up to and including total body disruption, then yes, any less than 100% is a sign of terrible inadequacies.

And even 0% is possible without going StarTrek, if for example full-time narcotic-induced bliss till the "natural" end of your life was an option. Then assisted suicide rate would just cease to be a good indicator of how good our health care and services are.