Earlier quoted context omitted.
Either China is doing this so they can have something to retreat on that seems gracious and careful (i.e., it's a complete ploy) or they're completely misreading Canadian sentiment. Canadians tend to give and give and bend and bend, but it really comes to it they snap in a way that I don't think the Chinese understand. We have way more leverage over China than they have over us. We sell them commodities. They sell us…
This almost certainly has nothing to do with changing Canadian behavior, it's about domestic politics. Canada/USA kicked one of ours, so we're going to kick 20 of theirs. They need to be seen to be doing it. The fact that it won't work and is counterproductive doesn't matter.
Is CCTV or other state-run outlets making a big deal about this death sentence and the other Canadian arrests? Is it portraying them as retaliation?