@Zextrace because they have to "run away" unless it's done when they already have returned to L'arc's country and by then it feels a bit too late.
@Borderline read my first comment to see the differences.
@n0rthernlying instead of getting creative, why not either ask what will happen, read ahead on the LN, or maybe the wiki. I guarantee though if they adapt the fight how it has to be it will be quite good, though sometimes they could make it better though I am not sure with how many changes they've done and not many that can be just ignored, some could have been adapted way better.