Xmas hours with the couriers now. Most couriers like USPS, Fedex, UPS are working sundays now to handle the influx of orders for the Christmas holiday.
I think what happened was that people initially had exclusive access and the hotter items sold out like the H2H's, Satin SBB and the Blue Moons then Nike opened up access to the rest of the Jordans with no or little resell/value to the wider audience.
But thats just my theory. As I have two...