The update on the mentioned line three, on the Government tourism site, is February 3rd.

THe EHAS page was last updated on January 26th making it obvious that they just haven't got around to changing the INFO page for the EHAS to exempt Canada and the USA..the 72 hour change will take effect as indicated for all other places of departure

The EHAS form still says 120 hours (I did a test application) but the 72 hours is not in effect yet