Why they say lack of endurance when they mean...

It is very common to link the mistakes at the bottom of the course with lack of endurance, whether the pace was too high or there's simply lack of resistance training. So let's do lots of lactic training in order to keep up the next time.

Let's thing about driving a car. If it's on highway, say at 100km/h, everything seems easy. But what about driving on a mountain road at 150km/h? Everything gets smaller, faster and narrower. You can't even think about small details like direction lights

Back to the slalom case, most of the times mistake doesn't came from an endurance lack, it's just a matter of being able to not crumble under pressure of the risk. Being on the limit during the whole run makes everything too fast and too hard, crumbling is just a matter of time. Same way the race pace has to be right just to get to the finish, knowing where the risk that can be assumed is.

Of course, it's just a matter of placing the risk where it's going to bring the higher benefit, and can be assumed with certain reliability. What is really needed in some parts of the course is some safety margin so paddling can be solid, the boat can glide, which brings confidence to the navigation, what will be very useful on the hard move where the higher risk was decided to be. What is crystal clear to me is that assuming that good luck is going to be needed during the whole run in can only end in one way. Crumbling.