money talks and we have no idea what the contracts say. under the circumstances i imagine there are some very explicit due dates and quantities spelled out when it hits mass production.Citation?
I think we may be surprised at how some other countries view Canada vs the USA and may "conveniently" ship us more than they might otherwise have early on. Trump for example didn't make any friends at Pfizer when he rushed to the microphone and twitter to take full credit for a vaccine produced by a company that didn't take a dollar of government money to research and produce.
One thing I will say about JT (although I'm not a big fan and didn't vote for him, as I've said before) is that they do have some master communicators in the government and have in the last few years managed to get results that have benefited Canada against all odds. Against what seemed like impossible odds quite often, actually.