Hi did you find out if your parents can come as immediate family members? My parents also have COPR can they come ?
You should also consider whether they qualify for healthcare on arrival also when considering travel. If not getting insurance is likely impossible thus a big risk financially and health wise. Do they have flights already. Based on current information no they don’t qualify since Canada considers spouses and dependent children as immediate family but the situation is fluid. Honestly Canada does not want FNs because of the extra strain on our healthcare system and many without adequate or no healthcare coverage.