This is not fake news, I have been following Calgary office for a while, they are very inconsistent and unpredictable, compare to Sydney CPC, they seems don't follow proper process and first come first serve queue management. After ordering my ATIP report, I can see Sysney CPC usually is very consistent, the day of IP, they initiate clearances then transfer files to local office, they usually arrive in local office after about 10 days. In my case and many February applicants, Calgary office has not touch the files for three months, but many March and April applicants got test invites after 10-20 days of IP, means Calgary office started to send invites almost immediately after receiving files. Also after test, some people got oath same day or are handed over invites for oath in next few days, some people just get invites in mail after a few weeks/months to appear the oath in another few weeks/months.
So it appears the OP got lucky in both stages.