Saying that Disney has to do whatever the guest says they need without question is not reasonable. That was established when Disney won the lawsuit over the switch from GAC to DAS.
We know people have lied to get DAS. We know people who got DAS legitimately have admitted to using it when it wasn't needed. We know that not every autistic person needs to skip the lines. Disney’s video calls are used to find out what obstacles a person has and respond accordingly. When someone says, "I need to skip the lines," it is not unreasonable for Disney to ask WHY they need that service and determine if that's really the only accomodation that is suitable or if it's just the preferred accomodation despite the alternatives being suitable. Disney has no legal obligation to blindly accept "I need DAS" without justification, nor are they required to have a policy granting DAS to every guest with autism. It is based on needs, not diagnosis.