Re: ASA told the Home Office not to run the advert again
btw, 2M out of 3M apparently haven't registered yet. Oops.
Because the government, including that advert, tells people there is plenty of time to register, and they will have until "30 June 2021, or 31 December 2020 if the UK leaves the EU without a deal".
This is why the government's new hostile environment - free-movement ending on 1st November - creates so many difficulties. Those having not acquired "settled status" may not be allowed back in if they leave the UK.
It looks set to be Windrush Redux :(