I wouldn't use that wording personally.
There's a difference in not being able to get a FP for something under the Legacy system because you showed up at 10 and now you're left with Standby (or if using MP hoping someone cancelled and you can pick up that FP) and being completely left out. I raised this question when Jimmy Fallon was announced to be virtual queue as well. No one can predict just when the passes will run out. You going to say "Shame on you" if the passes for instance run out at 9am? Or 8:30am? Not saying they would run out at that time but still the logic holds. That's why I posed the question with crowds. Imagine standing in line waiting to get in early in the morning, you didn't show up at 10am, you showed up early, only you're now waiting in line to get in. Now imagine the people in front of you getting in and booking all those slots before you could.
This just is a situation that for those going in the very early days won't be able to predict.
I'm not sure it will be that short, could be, but I think this is something Disney will have in place for an undetermined time period meaning no end time considered at this point. It may only be truly needed for a short time or they could find themselves needing it for longer.
Possibly adding to the time needed is when Rise of the Resistence opens. Depending on when it's supposed to open I could see Disney keeping it on for longer--might seem strange to have time slots for a time, remove the time slots only to add them back on all within a relatively short time period.