One of the light pods wasn't on for some of the pictures. The shadow won't be there when all 4 are on.
Go to the second to last picture from the DSG site and I think that is a better representation of how the field will be lit. Last picture...just how many of the other fields are lit? I guess they really want to use the whole facility as much as possible.
What is the roof for then? Whatever it is for, don't you think most fans in the stadium would want it?