But you haven't said how much extra fuel they used by flying the procedure! Of course, they may have had to burn off that extra fuel to get under MLW, who knows? Not you.
Keep up the good work!
It's like this you see. I could save 50 kilos by shortening my approach. This might allow you to save 50 kilos too. Or I can fly what I've planned to fly, but more efficiently saving perhaps 40 kilos, which might make you use 2 or 300 kilos more. Net result - your lot spend more money. That's competition.
Or I could fly a bit faster, get in front of you and save myself 2 or 300 kilos by using a little bit more than planned and not having to extend miles downwind while you happily fly around in circles using up your reserves. Maybe you should've done that into Corfu.