There is one other walk to dtd from PPH that no one ever mentions, which I feel is closest. When you walk out the front of PPH and walk to the light, instead of walking across to the grand, walk across to the parking lot (so straight) and walk across the parking lot, it is a small one, I think it is self parking for the grand. On the other side of the parking lot is a path, if you take that path between two buildings, you come out,
Lego store is on right, and movie theatre is on left. I believe that puts the monirail right in front of you.
When we stayed last time, several years ago( but we leave in 2 weeks for PPH), we found the walk thru the grand very unsettling to us. Very weird to us to have to walk up to the valet parking every day, and to walk past the security stopping cars. Once inside we felt out of place, lobby always crowded, people checking in, hallway down to Disney crowded, and we went on a low time. To us and I know this is personal, it took away the Disney bubble because we felt out of place, now we have stayed at the grand and love it, but there is a difference if it is not your hotel and you borrow it to get thru it. Personally I think we all need to fight for the private PPH enterence back.
If we walk the back door out we felt it was a longer walk to dtd but a very nice walk and did not take you out of the bubble. It had you walk up to dlh and kept you in the Disney bubble, and added maybe 2 minutes to the walk. By walking the other way, across a parking lot, did take you out of the Disney bubble, but actually was much shorter and got you to the monorail. So in the morning we went the back door and around, staying I. The Disney Magic, but for breaks, naps, back to conceirrge for snacks, back for a swim, we took monorail, walked down between the movie and Lego and went across parking lot, many time at night when tired we did this also.
Try it when your tired next time and see what you think.