> go to people giving the course for additional work
Always seems to be the solution. It doesn't scale, even if you know how to make a PCB or a cupboard (for example), it doesn't take 0 time. That extra work would be extra time spent, which is nonsense if the goal is to demonstrate competency and reduce wasting time.
Does not scale in what way? Exceptional people are rare, just as I wrote if someone is really exceptional he will blow through all this with no issues and minimal time. There is loads of people who just think are exceptional just like all those people on Instagram.
Does not scale in the way that the day has limited hours, extra work might be okay for a few courses, but not for more because you simply run out of time. There's also the issue that that extra work is given the same grade in the end, but you've spent more time. And no, knowledge doesn't make things take zero time.
Plus, the extra work is still about the same course material - instead of one hello world you write two. It's not hard, it becomes depressing and demoralizing.
Always seems to be the solution. It doesn't scale, even if you know how to make a PCB or a cupboard (for example), it doesn't take 0 time. That extra work would be extra time spent, which is nonsense if the goal is to demonstrate competency and reduce wasting time.