EU referendum, brexit and the aftermath

I'm surprised that the plan to end "free movement" for EU nationals the day after a no deal Brexit has not caused more fuss. Are the Tories really planning to cut off their ready supply of au-pairs, cleaners and low paid slaves at a stroke? Is this a real policy option or just a blackmail threat as part of their negotiating strategy with the EU?

Details here
https://www.thetimes.co.uk/article/end-of-free-movement-after-no-deal-brexit-risks-another-windrush-scandal-ttp0s03tw

A Home Office spokesman said that the paper did not reflect current government thinking and insisted that free movement would come to an end on the day that Britain leaves the EU. Priti Patel, the home secretary, is drawing up a new option for ending free movement on October 31.

and

The Times has been told that Dominic Cummings, Mr Johnson’s most senior adviser, wants to announce an immediate end to free movement after October 31, whether Britain leaves with or without a deal.

also here

https://www.theguardian.com/politics/2019/aug/19/threat-to-end-freedom-of-movement-overnight-reckless-say-eu-citizens