I mean, the same is true for any guest who chooses to re-ride an attraction. The access here is the choice. Nondisabled families may not choose to ride an headliner multiple times in a day - but it is a choice. Disney doesn't prevent them from doing so via standby on virtually all rides (VQs with Boarding Groups excepted, which is a minimal number of attractions at any given time). any guest choosing to ride a headliner multiple times in a day is going to have that same impact on that ride's standby line as a DAS guest doing so would.
Being able to choose what rides your family experiences during a day at Disney isn't an experience outside the norm. Everyone's daily ride makeup will look different based on their family's needs. For some that will be visit as many varied attractions as possible. For others that will be visiting a smaller number of attractions, possibly multiple times if they are able. Neither is right or wrong.
And again - those continuing to see something like this as an advantage for current DAS holders (so a much more restricted and higher level of need than previous) - please take a few moments to consider how those more significant needs can make riding headliners multiple times in a day extremely difficult for the family as well. There seems to be an accepted assumption that such a day would be easier or better or an advantage over others. Thinking about our own situation, the idea of riding Rise 4x in a day is just laughable because of how difficult the logistics of making that happen would be. I can't find the words to describe how stressful it would be. I actually feel for families whose family member may be super fixated like this, because I can imagine just how difficult it can be on the family to have to potentially choose between dealing with a possible crisis moment for the person by not allowing them to do the re-rides, or how difficult it would be just to logistically make those rerides happen and the impact it could have on the entire party to do so. Both suck and neither would I consider an advantage.
I don't know why there's a resistance to this notion that riding a headliner or busy attraction multiple times is very different when using standby versus DAS.
Last time I was at AK I rode Flight of Passage once via pre-booked fastpass and once via stand-by. I chose not to ride it more times because standby was two hours. Riding it 3 or 4 times is going to be unappealing for anyone. If you can do it via DAS, waiting virtually 3-4 times while you eat lunch or do other things, of course it's more likely.
This will impact wait times. Probably more so with something like Peter Pan which is popular and super low capacity.
This isn't about your case or people with extreme needs in general for which this isn't realistic. It's about the DAS users who have milder conditions, or no condition, and power use it. It imbalances the system, impacts others, and attracts more and more cheaters.
This is all why I said limiting DAS use to 1 or 2 rides on those types of headliner attractions is more comparable to what an average guest will experience, and is a reasonable accommodation in my opinion.
The cases where kids want to re-ride again and again? I don't know. I sympathize, but it's not how theme parks are designed to work. They're designed such that people will want to do different things, to spread out crowds and avoid one big shiny or new attraction being swamped.
There are going to be experiences that simply aren't compatible with certain disabilities. That's not meant to sound harsh or unsympathetic, just realistic.
. Hopefully you can find some magic in the parks.