Hmm. I understand why this idea would be popular with some people, however I also think like...how I would feel if I had moved to another country, got a job contributed to start with, lost my job because of a recession or some other reason beyond my control, or became ill, and then am punished for that and basically kicked out and made to go back to somewhere I have not lived in years, where I will not have anywhere to live or anything. So yeah, on this I have splinters in my arse from sitting on the fence tbh.
Edit. Oh it doesnt actually say leave if not 5 years of taxpaying. It says looking for work also qualifies. Though no mention of illness. Should read link before replying really, I tend to reply to the post rather than the link, then read the link, which is a bad habit