Week 3 - destroyer of lightweights

We all knew week 3 was a big boy's (or girls) workout.  One big difference though from previous weeks - some athletes are finding it near impossible to do the workout at all!  This is most dramatic with the female athletes.  Below is the distribution of weights from athletes who completed week 2, versus those who have submitted scores for week 3.

Is this shift temporary, or a permanant result of week three's workout?

The bar height is the fraction of total female athletes in any particular 5 pound interval.  The green distribution represents a snapshot of the athletes after week 2, while the red distribution represents what it looks like right now.  If workout 3 was doable for everyone, we would expect both distributions to look fairly similar.   What we actually see, is a shift to the right, marked by areas where you see green peaking over the red in the lighter weight classes.   Keep in mind the height of the green bar relative to the red bars will tell you how much of the weight class is growing or shrinking.

There's two possible explanations for what we see now.   The lightweights are waiting to submit their scores, or there's a small fraction of athletes that can't do the workout and won't end up submitting.  We'll see after the end of the week, but if trends continue, we could see near half the female athletes weighing 110 and under registering a zero score.

 Is this fair?  For example, can there be workouts where it can be near impossible to complete if you're too heavy?  I've got one for for next year - 36" box jumps anyone?