"The damage has been done through poor import policy ..."
We don't have one - poor or otherwise. Imports are an EU competence. Member states who share the same BTV status as us, i.e PZ to the borders of Cumbria, and after monday September. 1st, to the Scottish border, have free trade with us. To 'ban' anything on any grounds is a power our politicians abdicated a long time ago.
Individual farmers, as in the Dutch veal farmers, may make a collective decision not to import. That is different from a country's official 'ban'. And the farmers / dealers who imported these stock when vaccination has only just begun in continental Europe, is not completed and the virus is rampant, want their single collective brain cell examined. (IMHO of course)