Actually, it isn't presumptuous, if the queue was designed in a way that would not accommodate an
ECV, then reason would dictate that someone should be available to push the wheelchair through the queue for guests who cannot do so on their own. The goes double if it is only because of a new policy, such as the Haunted Mansion at
Disneyland. Again, we usually get they can't push for legal reasons, but I am not so sure this would hold up in court as other theme parks and zoos do provide such accommodations. Sorry, but a poorly designed queue is not my responsibility, my responsibility is to obtain the best type of assistance for me and that may be an ECV, which means that the queues need to be designed to reasonably accommodate an ECV or have an alternative entrance that can do so. Which is why I usually take issue with them saying they can't push for legal reasons, as I said, I hear that being said a lot, but it doesn't make it necessarily true.