There's one video that showed wall-e at the
D23 convention last year (not at
Disneyland, but at the convention center).
The other youtube video isn't at DLR, and the caption states that it was done in Los Angeles, if I recall correctly.
Either way, wall-e as a working robot is not and has never been at DLR or WDW. (which I definitely agree is sad)
All they ever had was a cutout standing in front of a backdrop of the 'bridge' of the ship...and that sounds really cheap, but in a picture with your kid draping an arm around the cutout, it is quite effective! But it's long gone now.