Well, just looking at one deck of the goal, it is a lot of extra weight adding onto the goal itself... Think about how much the plywood and all those steel angle around it weight.
And the point of the lower deck is to sandwich the steel pipes in between, because those are the only things you can grab onto this year. And, over all, it just make sense to have a cage/box thing as a goal, because this add a lot to the size of the goal itself. Those goals are pretty big if you have one in front of you.
Basically, Dean and Woodie just make the goals like this to add more pain and headache into your life for the next few months.
