No, not joking at all. When you say "beyond a certain point", if you are recruiting Captains with years of previous experience you might have a point. I say might because it would still be a little strange to see a CV that didn't list examination results as they are a landmark achievment. Nevertheless the relevance of them may be less in those circumstances.
This is a wannabees forum, and the suggestion that an absence of good examination results on a CV or application would be irrelevant is risible. You might want to believe that, but it isn't the case. For any position there are usually hundreds of applicants. You cannot interview any more than a small proportion of those applicants, so it is necessary to whittle them down to those whose presentation (on their CV or application) gives them the best chance of success.
At this level we are talking about low experienced applicants for an airline pilots job. Any company is going to expect to see a good educational background as evidenced by appropriate qualifications. Most people have them, and they are expected. Indeed to stand out, those achievements should be in good subjects and at good grade. If you believe otherwise, good luck!