Salaam I think the brother is referring to Tafweed of Kayf/Kayfiyyah instead of the normally understood Tafweed-ul-Ma`naa of which you are referring to. I would be really surprised if the above listed scholars really held/hold the position of Tafweed of Kayfiyyah absolutely (instead of Tafweed-ul-Ma`naa, whilst negating Kayfiyyah) other than possibly just a difference of terms, if thats what the above scholars held anyway. Wassalaam