The Bank of Canada needed to create liquidity in the short run because of the pandemic, but I have a lot of concern that they seem to be taking responsibility for long-term interest rates and not just the overnight rate they use for monetary policy. To that extent, I think they are getting into problematic territory. The credibility of the low inflation target would be much greater if the government's debt weren't seen as potentially unsustainable.
On March 21st, 2022. See this statement in context.