Sure, but there was no reason to criticize the author of the twitter thread for deigning to suggest that the status quo isn't the zenith of Canadian intercity rail.It isn’t like Calgary-Edmonton is a stretch. It was the other corridor examined in the mid 80s by VIA in its HSR study.
There problem there is the initial investment to get a minimally viable service, and that it is so high there is no viable no billions in infrastructure before service option. (or at least not one that is competitive with the bus).
We're going to get HFR in the corridor one day. Let's encourage rail service beyond that.