Yes, I agree with much of the content of previous points.
My concern is that I believe nothing in the present examination regime tests that a candidate can take a number of real time inputs, construct a mental model of the situation, establish sensible priorities, and take appropriate action - all in real time. I am, though, entirely willing to concede that I may have misunderstood interlinked subtleties of the question setting between subjects: those professional educators on the forum will, no doubt, have informed views on this. My point of view about these examinations is based in my experience of practical examinations in another sphere of activity.
A viva voce might do so, though it would still be subject to any inherent variation between dispersed examiners. An essay-type paper could do so perhaps as well, or, if marked centrally, by a moderated group of examiners, perhaps better.
Either way, a viva voce , or a written paper, could well serve a need to establish that prospective pilots can communicate adequately.