I was asked for hard copies too, and got DM in about 10 days, and oath invitation after a further 1 week. While I've been critical of IRCC as well, it seems fair to say Scarborough is working harder than other offices like Montreal and Calgary.
I do not understand why they asked for hard copies. Maybe they can claim that it is more difficult to process/review hard copies than scanned copies, another excuse for the delayed processing of the 2019 and early 2020 applications?