Good read. I called immigration again and they confirmed that the q&a section is authoritative, meaning the 180 limit for visa exempt people who had a full 180 days (and did not reach it as of July 17, unless by explicit permission - I.e. special exemption application) is now extended to 210 days automatically given the special circumstances.
I am also with you on commendation for the compassionate way the government is handling the crisis. Even the fact they are being so proactive in issuing (and clarifying) notices in English in and of itself is a testament to that.