People with legitimate disabilities will understand that going through the normal LL purchasing experience will not be enough to guarantee access. It doesn't for regular folks, rides sell out, and during busier times we hear a lot of stories about how useless Genie+ is, already. On the DIS, someone talked about how given the unpredictability of their family member's condition, spending that money comes with the risk that when their LL window opens they may not be in a condition to actually experience the attraction. That's different than skipping a DAS return time because they needed to leave the park early. It adds up to a lot more risk on a $5K - $10K vacation.