The exclusion of analogue material is a clear proof that digital has not yet reached the quality and emotional response of analogue photography. Instead of bitching we can see the decision as proof of analogue's superiority.

This could also be seen as a possiblity for guerillia warfare against digital. Make a superb photo with digital, win, and if it came to an interview you can say that digital is an inferior medium but that you had to use it in order to compete in this competition.