The 3D craze has been an incentive for theaters to convert to digital. And, due to the premium cost for the tickets, it helps defray the cost of the conversion!
Even if it is a short lived craze, it is doing damage at the present time to print film production and is causing a decrease in film production. This decreases profit at EK and Fuji and decreases the number of trained people able to make the films we want.
Even if 3D vanished this year, print film consumption would have been rather badly damaged. This is my understanding of the situation as it now stands!