DH and I went over Labor Day weekend and while he has some other issues that need accommodations, the easiest in the past has always been to explain the bathroom issue, as he also uses an
ECV, so for most queues leaving the line if the issue occurs is impossible. Not to mention, sometimes there isn't enough time to stop and talk to a CM and make it to the bathroom.
First it should be noted that the guest relations CM insisted that he would be able to leave any queue and that all queues in both
Disneyland and DCA were fully accessible (we all know that isn't true, but no one could convince the CM otherwise), so he did end up going into his other issues, which I won't detail here, but suffice it to say he did get a
DAS.
That being said, I only went on one ride due to leg pain and I decided to try to transfer on web slingers, rather than remain in the ECV that I had for the day. In hindsight I should have asked for the ADA vehicle, but I noticed the CMs were way more helpful and accommodating than in the past, which was greatly appreciated. I mean they definitely went way above and beyond for me.
DH rode a few more rides and he said he noticed that this seemed to be the trend, he and the other two people in our party went on Haunted Mansion Holiday and they needed to take their
ECVs (two, his and one other) down since it was the end of the day, this meant they had to wait for a bit before being able to go in and the CMs made it clear that if they needed to leave the line for ANY reason, bathroom, get food, drink, etc. to just let them know and they would make sure they didn't loose their place in line.
He did notice some people asking for bathroom passes (note this is not something guest services issues, instead it is given at the attraction and is available to anyone) and they were indeed given them and came back to meet up with the rest of their party. Of course each attraction seemed to handle it a little differently, he noticed at Mickey and Minnie's Runaway Railway a CM escorted them to where the lobby before the preshow is via a backstage door when they returned and then waited for the rest of their party. Haunted Mansion escorted them to where the wheelchairs wait to go in and said to merge in when the rest of their party arrived at the front of the line.
For most people with bathroom issues, this accommodation would be fine, but again when dealing with ECVs and/or urgent issues, there needs to be more thought put into the new process. The DAS worked before, but admittedly if too many people get them, then it becomes a useless tool as you can be waiting just as long as everyone else again, so not saying that it should be an all or nothing solution, just that there does need to be a little more thought put into it.