This is what they need to do. And I read another article about the UK saying it will cut off freedom of travel from the continent after Oct 31. This is also a good negotiation tactic. They need to be prepared to walk away completely if they cannot negotiate a fair deal from the EU. They are always free to make new laws that are in line with being good neighbors but they need to scrap all the laws and regulations imposed on them by Brussels.
That was always in the works post-Brexit for the freedom of travel for other EU country nationals to travel.