We are from Oct.27th, my husband got his AIM and DM in the same email a few days ago.
I think it is a good sign for your finger prints. They just want to make sure you did not commit any crime in Canada, which is normal.
My husband is (or was) currently with «No legal status» since we've been a bit lost in all this, we did not know you had to send a OWP to get the implicite status. But it's all done now since he got his DM. We are waiting for the landing interview in Montreal.
You were lucky, indeed.
It seems they are treating Sept - Oct fast for some reason, no idea why. I know they got pretty messed up with some Quebec applicant concerning the CSQ. Maybe they wanted to proceed these application to get rid of their mistake? I could not say...
But overall, congratulations. I am happy for you. I just hope that other people that applied before us can me proceed as well.