You are right, both issues... de Vos can only operate at university where his prejudices are seemingly less important. .... otherwise, he would be unemployable. 

I do personally regret that the Afrikaans universities have had to give up teaching in Afrikaans, only in English, particularly as the problems with some students is that they do not have a sufficiency of either English or Afrikaans to the required Tertiary competency.  This is not to say I do not have sympathy for those students as the alternatives are terrible.