The only positive I see in the no-dating rule is the idols will focus on their work and not get accidentally pregnant where they'll retire.
But as an AKB fan, and Disney haha, I am totally for them having freedom to love and date. Fans need a reality check, this concerning the crazed fans in Korea too about their idols.
Manga note: They haven't fucked yet, right? Just blowjobs and footjobs?