We have a similar situation with the SWEFTA showdown every year. Members qualify by being in the top four scores at league shoots, then for one reason or another, often plausible, they drop out. It's as though a place in a showdown no longer holds the same je ne sais quoi as it used to.
Possibly the format is wrong. Why should being in the top four at a league shoot where you have two minutes (and in SWEFTA's case all the time in the world) for two targets, befit you for a place where you need to down two in less than a minute?