But what you're saying would only apply if there were variations between the Dead Sea Scrolls and modern texts. Perhaps people could understand the evolution of the documents, and a greater understanding of the bible.
However these are exact copies of texts that are already commonplace. Wikipedia says, 40% Old Testament, 30% Apocrypha (that were already known), and 30% religious commentaries by some unknown Jewish or Christian sect.
They aren't at all controversial, they say basically nothing about Catholicism. For the most part, they're just really old copies of a book. If you found a 1,800 year old copy of Virgil's Aenid, that would be pretty neat, but it wouldn't have anything new or controversial to say about the epic.