I did some analysis on the number of visa applications granted across all sub classes. In regards to 186 ENS, there is a 66% drop last year if we compare to the year before however, if we look at the total number of visas granted in the year, 186 was given more priority compared to last year. Noting that 186 visas were only 1.81% of all visas granted in 2020.
Attached my calculations for anyone interested. Data from https://www.homeaffairs.gov.au/access-and-accountability/freedom-of-information/disclosure-logs/2021
fa-210200113-document-released.xlsx