So, if I understand it correctly the central issue is that some "people" don't believe that he has disabilities? And, you are thinking that part of this is that your son compensates so well that he is successful in many different activities (and from what you've posted before he would prefer not to draw attention to focus on his disabilities or discuss them with other people.)

Who are the people who don't believe that your son has disabilities? Is it important they they be persuaded he does have disabilities and if so why? Do you think an article you found online will make a difference?