That is exactly how I see this exhibit. It looks to be some old banged up wooden items made to look like scraps, and then painted.
I feel like these pieces are what would be in an artists backroom. Random pieces of wood and cloth and crates, potenially covered in some paint throughout the years. If they had said the theme of this was "artist's backroom supplies" or something I can see how it would make sense, but it isnt very interesting to the masses because they probably cant imagine many thoughts for it.