I don't think H!P should let their j-idorus perform in plays anymore. Otherwise more may "realize the enjoyable charms of acting" & all fans do is speculate who's announcing next, every other month.
What then, will Upfront need to have 2-3 auditions annually for Kenshusei and Morning Musume to keep the numbers up, otherwise H!P may not even have sufficient members for groups, just some soloists here & there?
Just saying: Upfront and 48Group shouldn't look towards Afilia Saga's graduation frequency as the exemplary model for j-idols