It's a list not a sentence. It works perfectly well without a final conjunction, therefore the presence of the final conjunction changes the meaning.
a) The canning, processing, preserving, freezing, drying, marketing, storing, packing for shipment or distribution of [stuff]
b) The canning, processing, preserving, freezing, drying, marketing, storing, packing for shipment, distribution of [stuff]
That's the logic the judge seems to have followed, and it makes sense to me. Other logics might make sense too.