Understood, but for me. it is the only way to verify whether it is treated as inspired text or not. If Jesus or an Apostle used a particular text from the Deuterocanon, and used it as law, then that opens the door of credibility to the rest of texts in question.
When it comes to discriminating texts, the biggest reason to reject one over the other, is in terms of contradicition, This is why some books are accepted and others to be called, Pseudographia = False texts or scripture.
There's a reason why 3 & 4th Maccabees, the Gospel of Thomas, and others were not considered canon by both the Vatican and Protestants. Either they include wildly sensational stories such the child Jesus wiping out an entire town in, I believe, the Gospel of Peter, or includes mysogynistic doctriine as found at the end of the Gospel of Thomas.
Now the Rabbis rejected the Apocrypha from the Masoretic texts. If the Deuterocanons were indeed inspired scripture... why didn't Jesus rebuke them?
To be fair, the Masoretic text only included 24 books so obviously we shouldn't follow their example most strictly, yet they nevertheless rejected them