I'm guessing they mean fastpass returns are several hours into the day? Not like actually waiting in line. Otherwise I don't see why they'd even have a standby queue at all.
I agree that's probably what they meant. But it's worded terribly and obviously got people confused. And FP returns ran out early afternoon from what I saw- could have easily been well over 5 hours from when they pulled the FP. But that's normal on many days for rides like Radiator Springs Racers and Hyperspace Mountain.