I'd like to respond to this, first, as an individual photo-enthusiast and not as one of the editors of the PBase Magazine:
I personally agree that the wording seems to be more abstract than I'd like. If I just looked at the para of the competition, it would be hard for me to figure out what exactly it means without consulting a dictionary. To that extent, I believe that the wording could be simplified.
However, once I checked up the meaning and viewed Phil's galleries, I found it nothing less than inspiring. When I viewed the images without a commentary, I just did not get it. When I viewed it along with commentary, I was very inspired. I admired his perspective.
Now putting on the magazine editor hat:
I think we could have done a better job explaning that 'incongruity' has been explained in detail in the article before the challenge and that readers should first read the article on expressive photography before jumping straight into the competition.
We live and learn, I guess
I think this is a great discussion - it gives us tips on how to move forward with this section. Thanks for bringing this up.
regds
arjun