I don't think this is the case. How does management pressure her? By making her leader of Wakasama Gundan? That was Wakatsuki's wish, and they honored that. There is no better way to deal with this, is there? Don't forget, Miona got a push in the early days, but since then, it's all her own achievement. That girl is talented, y'know. Haters will be haters anyway, and it's their loss.