Keir is technically not an Admin, for the record. Neither am I, if anyone who is confused about that is reading this thread. But that's off-topic.
While people who post on the Sim News generally mean what they say, unforeseen circumstances can mean that offers need to change after they have been made. I'm guessing the volume of response caught Keir by surprise, and he thought that leaving it open the full 10 days would be too much. Or he thought that everybody who wanted it had responded more quickly than he thought.
Either way, he did say that it would not be the last opportunity for it (if I'm reading that right) so if you pick up and hold on to the NPCs, hopefully you won't have to wait too long.
____________"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."
Only fools and children dream of heroes.