Watched a video last night where a group went from DHS to Epcot, one walked and the rest rode the Skyliner (you can search You Tube for "Race to Epcot, Skyliner vs Footpath).
The walker won the race hands down, but by the time he got there, he was puffing and ready for a bench and his water bottle. Time on the clock for him was between 17-18 minutes (started from DHS exit, ended at IG Skyliner station). Skyliner wasn't much longer. Riders had no waits at DHS or CBR station, and I don't think they stopped at all - it was dark out so hard to tell. Anyway, I enjoyed seeing someone try this.