There are bad apples in every profession - doctors, police, bankers, plumbers, ditch diggers, painters, etc etc etc. Doesn't mean everyone in that profession is bad. Sometimes people also just make mistakes.
Your friend's experience is pretty rare - I don't know ANYONE with a C section who was sent home (or even allowed to leave) after just one day. Ontario has a pretty good system. I wouldn't trade it for what you see in the US.....if that's what you're comparing it to.