It's not a pump and dump. All pre-mined coins will be held until claimed or until they're given away to charity.
It is a pump and dump, those poor Palestinians will be left holding the bag with worthless Juba coins. Better get them to invest in bitcoin instead.
They're receiving them for free. If they're worth something in one year, great, otherwise nobody lost anything. And if none are left, then it must mean that those who opted-in and got them are holding something valuable. So it's win-win any which way.