I explained this before, Covid had (not has) much to do with 2021 draws and app processing. Had the government continued with FSW since Jan 1 this year, how many of those could get PPR before 2021 ends? Even if so, how many of those could land in Canada this year? Risks were very high. So the government didn't have a choice but to go with people who are already in Canada. Add the megadraw to that as a boost. Low-score CEC was inevitable due to the demographics of the EE pool.
But now, things are different. 2021 is done, 2022 targets are next. FSWs can land in 2022. Also, vast majority of low-score CEC apps received in Sept and onwards won't receive a PPR because there's not enough time left in 2021. So they won't help 2021 targets. The government didn't want to invite more low-score CECs because they aren't essential (yet) for 2022 targets, so they have been decreasing CEC invites.