This jaded/veteran visitor wouldn't use it. As convenient as it is, I hate it when they route you backstage to empty out a park. When I'm at WDW I prefer wall-to-wall, 24/7 magic... even if that means crowds.
We stay until park close most of the time and we never count on getting out quickly or easily. Instead we pull up a snack or a drink, find an out of the way bench to chill out and people watch until the crowds clear, then enjoy strolling out of a mostly empty park.
But hey, we're crazy like that.