I think CIC is processing PNP Inland application this way:
first they leave the application for 70-80 days (BG is NS/NN) then they start with Medicals passed (BG is in P1)
then they ask immediately for extra docs (if needed ) and they work on Criminality and then they ignore the application again for 70-90 (BG is NA and Security and Eligibility are not started yet )
then BG is back to IP2 and they work on security and eligibility and if the applicant is from a country with some red flags, they might take extra time and exceed the 6 months timeline.
I am still at NA since almost 70 days