I dont know how they come about this data but most of the people I know who applied in the first three quarters of 2019 got their application processed in 4 months.You're wrong. Average time for FSW was 9 months in 2019. Check IRCC's report for 2019: https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/express-entry-year-end-report-2019.html
Today IRCC website says applications for CEC received in the first week of december 2020 are being finalized but I've seen tons of CECs that submitted their application in Jan, feb and march 2021 having their applications approved in three months