First of all, the UNH status always were set manually, it never happened as soon as season started, it always happened later. That said, i wouldn't be surprised if no UNH players would appear this season. They usually appears when NT elections starts and that didn't happened this season. What surprised me more: not even the 1 season left players are UNH, that is new.
Personally, i couldn't update contracts from players with long contract left (3 seasons left or more) but i did it with those who had 1 or 2 seasons left, my weekly wage increased about 60k, if i would have known that no UNH players would appear, i would probably renew those who have only 1 season left.
If finally no UNH players appears, i think that admin found a solution to the long UNH problem, he just removed it, it was probably easier than creating a fix for UNH loaned out players, don't you think?
A small announcement BEFORE the season change would have been welcome i believe, but i am expecting too much.