Ahead of time you either qualify of DAS or you don't but there could be like DAS A, B, C, etc, with different levels providing different accommodations depending on the need. But right now you if you don't qualify for DAS but need something yuou have to explain it to the CM at the front of the line which can be embarrassing, especially if having to detail things about you or your kids, and B you don't know what the accommodation will be or if there will even be one ahead of time
Couple of examples, if someone is able to wait in some lines but not those out in the sun as prolonged exposure to sun can make them sick, they could have that indicated ahead of time and that for 10 rides where the line is largely in the sun they can use the LL or if the standby line is beyond a certain point they can use it, but not on other attractions or not if it is beyond a certain point - but at least they know ahead of time and can plan for it and around it
While there is "return to queue" for a lot of the lines it isn't easy to get our of the line in a hurry if you need to and/or get a CMs attention. Would be nice if they adjusted their queues to better enable this but for now perhaps similar to above there are some lines that are easier to get out of and those you can wait and others that they know it will be hard to get out of you can use the LL.
Just a couple of ones off the top of my head but something that shows they are trying to listen to what specific needs people have and have plans in place to address them even if they don't qualify for traditional DAS