???This ECJ ruling has found in favour of the member state’s wishes, not the reverse.
Read further down in the article. What the ECJ ruled was once invoked, article 50 could be revoked by the state who invoked rule 50. Nevermind the political consequences of this and that this was after Brexit was in the works. So the ECJ’s and by extensions, the EU’s rules on this are being made up as they go, in ways which can be turned around to support the EU.