1 mile away from the point where you would have to jump over the fence isn't 1 mile away.
FYI, whenever I quote distances, I use a measure that a fellow reporter came up a long time ago, that is the walking path (not as the crow flies, but using well known paths/crosswalks, etc.) from the Front Lobby of the Hotel/Motel/Restaurant to the center star of the Esplanade/ticket booths. Now that can be a bit misleading, as some larger properties have multiple towers, etc. and you can get almost an extra 1/4 mile of walking if you are in the far back building.
Same as the parking lot distances I used, it looks at the actual pathway/sidewalk needed. For example, the Mickey and Friends structure has a large gap in the middle, so you have to walk around on the sides, to avoid the incoming cars and stay on walkable paths.
Walking distance is always hard, as what one person says is walkable, others say is too far, I do think the "about a mile" is a fair average definition.
Also, you have to take into consideration issues such as the walk from the Hotel Menage to the DLR, while it is 8/10th of a mile, you have to take into consideration, that you are going to walk over a bridge with a grade over the I-5 freeway, and even cross a couple of crosswalks without a traffic light control through a freeway on/off ramp. It makes the walk seem longer than most, since you do have the climb up the grade, and that there is basically nothing on the walkway, just the freeway and a
Disneyland border fence, nothing really to see and take your mind off the walk. (Say compared to the PPH walk through Downtown Disney, where you can stop and grab a bite to eat, etc. Or just sit down and relax.