They've never had big teams in the Aris era, on the boys or girls sides, when compared to similar-sized schools. This season may be a more extreme case of that, but not drastically so.
It begs the question as to what is the "right" approach for a HS cross-country program. Do you run an inclusive program that encourages participation at all levels, maybe at the expense of developing your top athletes? Or do you focus solely on national-level competition, maxing-out the truly committed but weeding out / turning off a lot of kids who could still derive benefit from the sport? I don't know the answer, and I'm not sure there's a single correct one.