Why not? For nearly all of the gymnasts competing at Challenge, this is the biggest, highest level competition they do. It makes me really cross when people treat it as 'merely' a stepping stone for elites on their way to the British Championships, as something which has to be 'got out of' as quickly as possible.
The gymnasts at Challenge often train alongside girls who have qualified to British via the Compulsory route or Challenge Cup. They train the same hours, face the same struggles. Why shouldn't they be able to compete once a year at a major national competition, and have a shot at national medals? Many will likely never get the scarily high qualifying score for British, but that's not why they are doing it. They go back to Challenge year after year really looking forward to it as the competition highlight of the year.
So, rant over. See you in Guildford in November