It was perhaps overly critical and perhaps this single picture isn't representative of their practice. But there were only two pictures in the article and I assumed the two chosen were representative.
Photographs that accompany an article are generally taken by a photographer who is ignorant of the subject matter. How would this photographer know what a representative image is? Most likely, he/she simply chose the two best images in terms of photographic criteria (i.e., showing motion, faces not obscured, in focus). Quite possibly those were the only images that met those criteria. I think it highly unlikely that they were chosen based on being typical of the students' practice.