I may take years after AIP to get PR as I saw in facebook group today. I think the delay in processing PR after AIP is due to small quota. People would need to adapt to living in Canada on work permit for quite some time.
It will unless there are reforms the wait periods will keep on growing. This does complicate things for people who may not qualify for services like healthcare or even education in certain provinces. Many will require that a parent is working and for dependents under 18 could struggle to attend post-secondary education. Really depends on the province. Also makes travel out of Canada risky.