IIRC the disability that was your family’s reason for
DAS eligibility before the changes is that he is immunocompromised. His immune system is weak and cannot fight infectious diseases and cancer.
What I do not understand is why you think DAS is an appropriate accommodation for this disability?
An airborne virus can hang in the air for 8, 10, or 15 minutes or more depending on air movement and the virus. In human to human transmission, someone could have coughed or sneezed ahead of you in line well before you reached that point and you would not have any knowledge that it happened. It takes a split second to breathe in a micro organism that could become fatal for a severely immunocompromised person. It is irrelevant if there is 30 minutes in a line or 90 minutes. Once that virus is inhales the host body is subject to infection. The same for droplet transmissions. Those droplets can travel, survive a surprisingly long time on surfaces like handrails and are present all around us in crowds; not just in the standby lines of Disney parks. If he is that immunocompromised, just standing on Main Street in MK is a big risk. So, I do not understand what, if any effective accommodation any crowded theme park anywhere can offer. It certainly is not DAS which is just using shorter queue lines to ride headliner attractions. Maybe the effective accommodation is not to go to intensely crowded areas? A crowded theme park cannot offer any effective accommodation to fully ameliorate the risk to a severely immunocompromised person. The defenses for that are PPE or a hazmat suit. Not DAS.