I'm afraid that is sport; it's a case of Tough! If a youngster has better results in the qualifying period, then they deserve to go. A couple of years ago I thought Alvarado would be the next best after the two Annes; however since then Puck has overtaken her, and Fem could as well. Terpstra will likely be the first choice, but after that, pick one from three.
From next year, the U23 World Cups will have Short Track, that will suit Fem; get points and a decent starting position for the XCO race. Regular podiums are possible, especially if Burquier moves to the Elites as well as Pieterse.