Was this recently?
A scooter certainly doesn't help people get on rides faster.
My family was highly encouraged by other guests at WDW to "take advantage" of the
DAS system and to rent some ECV's so we could "receive preferential treatment". Yeah, some older lady followed us around
after we left an attraction, huffing and puffing and wheezing that we should do this and if we didn't, our trip would be ruined! Yes, our family was a little slow, and yes, 3/5 adults needed assistance with balance and walking, but that doesn't mean that we need to be given an advantage over any of the other WDW guests!
IMHO It is this insistence that Disney go "above and beyond" for the disabled that has cut down on so much of the Pixie Dust and customer service through the Parks. I mean, we need all look no further than the old Guest Assistance program to see how nicely people can play with others
One wheelchair-bound guest in three hours, okay, that's do-able to allow them to go to the front of the line ; if we now have 30 wheelchair-bound guests in an hour, how is it fair to let them all cut the line and have the people who waited patiently have to wait yet even longer?
Accommodation is not the problem - keeping an equal level of service across the board, for all Guests is the problem. Especially when so many people feel they are entitled to better service or premium access.
The only way you get those things at Disney is to throw massive amounts of cash at them. Like that recent millionaire guy who paid Disney so much money to shut down the AK resort lobby, host a choral welcome, and have one of his daughters' proposals re-enacted as a scene from Newsies, with the original cast!
Doubt that they got anything less than front of the line, VIP treatment! But vacationing on a budget like so much of the masses? Well your child, disabled or not, has the same opportunities that about 15,000 other kids at any other moment in WDW also have...
make it special with family memories, not better service or premium access. Because unless you can afford to literally give Disney millions, it likely isn't happening.