all the dwarves need to survive. The amount of close calls was ridiculous but also featured lots of humour, e.g. with Bombur in that river scene. And most of such action scenes were filmed from close, so it looked less crappy than e.g. the Fraggle Rock scene from the previous film. The film has a zillions times more action than in the book, so evidently, there had to be a zillion times more escapes. The action was indeed packed and over the top (less too close to call could have been an option), but thankfully, there's a lot to make up for it.