To me the core point of the article is that things in theory could be safe, but in practice aren't. Vents might not be used, vents might not be set up correctly

To me the core point of the article is that things in theory could be safe, but in practice aren't. Vents might not be used, vents might not be set up correctly, the furnace is leaking or not properly venting. As the article points out, this seems to be the norm rather than the exception. The article doesn't purpose any policy changes. Not everything needs to go straight to politics.