I was able to finally understand how this idea would work and your motivation behind it.
First of all, in some sense, it is unfair, e. g.:
Player A is only able to move 50% of there armies and Player B can move 99% of there's, thus despite having fewer armies Player B could be guaranteed the last move.
It is player's B own fault that he is in losing position and that he can't get the last order. There is no need to hurt player A for that. By the way, this problem is solvable by saving Order Delay Card and using it later.
Another problem appears from analytic point of view. It would be very hard to follow what exactly your opponent is doing behind the fog, since moving your armies in stacks would have the same effect as splitting them (in terms of number of orders).One more thing: delays are overrated.
Edited 10/15/2018 14:07:38