Yes. It's offical. You may find that information on the news or on IRCC website. They are either temporary residents or temporary workers (OWP holders). However, they have access to many government services.
I was shocked when I first learned this, but that's out of our hands.
I hear you. We pay taxes, and work hard. A lot of people haven't even left Canada for 2, 3 or more years, and yet we are still being asked for another medical exam, which is paid out of our own pocket. Let alone to say, unlimited wait time. I understand your frustration. I'm sure we all do.