No kidding. I had to do that from the BA F lounge several years ago with what turned out to be a broken ankle. I was too proud to accept the lounge agent's offer to arrange assistance but was certainly regretting that decision in the middle of the hike.

I also noticed for those gates the status switches to "Flight closing" like 40 minutes before departure. I always suspected that was just to instill panic and get folks moving faster, as most wouldn't realize how long the walk really was.