I would make a few distinctions. I view the questions posed by your colleague as being focused on Canada's readiness for future scenarios, to respond to the ability to finance our existing debt going forward, based on the government's current fiscal tracks. That's a discussion.
Your questions and framing put that discussion in an international context. From an international perspective, you've quite rightly quoted how the IMF views these figures and certain profiles about how Canada holds up in the international setting.
Canada has worked very hard over many years to make sure that programs like our pension obligations have been funded in advance versus on a pay-as-you-go basis, which other countries face, and that also contributes to Canada's positive profile from a comparative setting. That doesn't mean it's necessarily the right answer for parliamentarians, who have already posed questions to me along the lines of what the right balance is for spend now, pay later. Also, there are a range of questions about how Canada looks comparatively when you add provincial debt and when you add the debt of households.
I don't in any way take away from how you framed issues, but I wish to provide context for a range of questions beyond the points you've made. They stand, but further context can broaden them.