What Pakistani argument urged Fazlullah to lift the ban on girls school?

From the text:

What I didn’t know was that Hai Kakar was holding secret talks with Fazlullah and his commanders. He had got to know them in interviews, and was urging them to rethink their ban on girls’ education.
‘Listen, Maulana,’ he told Fazlullah. ‘You killed people, you slaughtered people, you beheaded people, you destroyed schools and still there was no protest in Pakistan. But when you banned girls’ education people spoke out. Even the Pakistan media, which has been so soft on you till now, is outraged.’
The pressure from the whole country worked, and Fazlullah agreed to lift the ban for girls up to ten years old - Year 4. I was in Year 5 and some of us pretended we were younger than we were. We started going to school again, dressed in ordinary clothes and hiding our books under our shawls.