I am not aware of cit0520 however the agent himself told me that if normal processing time passed than the case become non routine. I googled non routine case and got freaked out
Which agent told you? You mean the officer at the interview ? That’s what I was told by the agent on phone at CIC call Center about cases not being called “non routine” anymore after 2015. Actually , if you search on Canada.ca site, they mentioned similar thing too as in if someone applied before 2015 and still hadn’t got the citizenship yet, it would’ve been considered non routine .
Every case and situation is different. Do not worry too much. That’s what I keep telling myself and others too. At the very least, we can keep renewing our PRs to get with our lives while waiting .