The COVID-19 pandemic

[tomh009]

unable = unwilling -- it simply means it's not absolutely mandatory. Anyone 'unwilling' will fall under 'unable', even as far as some bringing up informed consent.

Not a lawyer here, but at plain language “unable” is very different from “unwilling”. “Unable” means medical counterindication, period, or unable to get to a vaccination location (which shouldn’t be an issue in this country). It’s also reasonable, in principle, to grant cultural objections (to a specific vaccine, not to vaccination in general), but I don’t think there are any (anybody know of a counter example?).

“Unwilling” means the mandate isn’t a mandate, the thing that is supposedly “required” isn’t, etc.

Exactly. From that original DND page that jeffster linked to:

What will be the career ramifications for any CAF member who refuses the COVID-19 vaccine?
In light of the announcement made Friday, August 13, 2021, the Government of Canada intends to require COVID-19 vaccinations for federal public service employees and Canadian Armed Forces members. As further details unfold, they will be communicated to all Defence Team members.

I'd say it's pretty clear that you do not get an option to refuse, with no consequences.