I'm sorry but that is pure ******** I've been trying to get a disabled person a tablet and had to get an Android one because of the lack of mouse input on the iPad (which is his only input option) So I tried the Samdung Tab 3 8" 4G because it had one of the newest Android versions where you could configure a home button on the screen (again to use with a mouse only).
This is surprising to me; generally Apple is far ahead of Android (and everyone else) in terms of accessibility features. iOS 7 has added several "motor control" features. I don't claim to really know what that is for, but is that related to the disabled person's needs at all?