If they have ignored it that doesn't mean Ibn Taymiyyah was going against Ijma. There was not any ijma on this at all. We hardly have selected qoute from mutaqaddimeen regarding the actual issu and that falls in support of Ibn Taymiyyah. Apparently the view of Imam Malik held same view, but those who came later they made taweel of his statement. Before Ibn Taymiyya, Qadhi Ayadh, Qadi Husain, Ibn Batta, Ibn Aqeel, Abu Muhammad Juwaini were also of this view. And when Ibn Taymiyya gave his fatwa, there were many scholars who supported him. Some of the fatwa is mention in the Al-Uqud Ad-Duriya by Ibn Abdul Hadi. Those scholars who supported his fatwa were, Ibn Al-Kutbi Ash-Shafi'i, Muhammad Ibn Abdur-Rahman Al-Baghdadi, Abdul Mumin bin Abdul Khaliq Al-Khateeb, Jamaluddeen Yusuf Ibn Al-Batti Al-Hanbali, Abu Amr ibn Abil Waleed Al-Maliki, Abdullah Ibn Abil Waleed Al-Maliki etc. All these are mention in the same book Al-Uqud Ad-Duriyah.