Oral exams were tough if you were nervous. You are facing the teacher feeling like they are getting pissed at your lack of preparedness. On the other hand, if y

Oral exams were tough if you were nervous. You are facing the teacher feeling like they are getting pissed at your lack of preparedness. On the other hand, if you record them yourself, who is to say you don't have a teleprompter just behind the camera? You'd have to make people come on campus into a testing center to ensure fidelity. Its probably a lot more expensive to build out AV facilities for each and every student at a massive college taking an oral exam than it is to just have a 1foot folding desk and a few sheets of paper.