I would be quite surprised if the EU decided against further intervention by this. If anything, I would expect them to intervene more.
This isn't a game won by winning a debate. When one side can be essentially removed from the field, that is an option, even if the side being removed wanted that line of strategy to unfold. Controlling the plays doesn't mean you win the game.
Unbeknownst to me, I have a proclivity for alcoholism. I am libertarian during a prohibition and work to remove limitations on what, when, where, and how I imbibe. I am successful in deregulating alcohol... then I become alcoholic and die from liver failure... I WIN!