That strikes me as rather unlikely. Surely to pass at least some courses some not completely trivial amount of coding was required. Maybe the issue is the con

That strikes me as rather unlikely. Surely to pass at least some courses some not completely trivial amount of coding was required. Maybe the issue is the context in which the "Fibuzz" test is given is so different from that of class work or real work that the candidate just isn't used to operating under those conditions. I can especially see that if you're expected to recite every line of code perfectly over the phone or write them out on a whiteboard in front of a bunch of people.