I think they just want it to be different and with the staffs working on it, it would be a waste if it's just moe craps + it's more interesting.
Beside, since they're including characters based off AKB48 members, the only AKB girl that would work in that moe/kawaii image is Mayuyu
Everyone else don't have that kind of image, especially Itano Tomomi, Takahashi Minami, Akimoto Sayaka, Miyazawa Sae, and Shinoda Mariko. Yuki, Acchan, Yuko, and Kojima can be cute but not in the moe anime way.
I'll cut someone if they make Sayaka moe......I'm not even kidding..