"barmy Eurocrats risk jet smash horror in hair-brained environment scheme"
I don't suppose they could be invited to a suitable airfield with a practice fuselage and invited to control a fire from inside the aircraft (simulating problems at altitude), first with a halon system, and then with the proposed alternative? Either they'd get the hint or we'd have to vote in a new lot having toasted the current lot. I bet the new lot wouldn't make the same mistake.