The fact that they aren't in the canon should tell us something. But I lack familiarity with the works you mention. More to add to my reading list! ;o)
A large group of Iraqi soldiers are moving down a road when they hear a voice call from behind a sand dune: "One United States Marine is better than ten Iraqis." The Iraqi commander quickly sends ten of his best soldiers over the dune, whereupon a gun battle breaks out and continues for a few minutes, then silence.
The voice then calls out: "One United States Marine is better than one hundred Iraqis!" Furious, the Iraqi commander sends his next best 100 troops over the dune and instantly a huge firefight commences. After 10 minutes of battle, again silence.
The American voice calls out again: "One United States Marine is better than one thousand Iraqis!" The enraged Iraqi commander musters one thousand fighters and sends them across the dune. Cannons, rockets and machine guns ring out as a huge battle is fought, then silence.
Eventually one wounded Iraqi soldier crawls back over the dune and with his dying breath tells his commander: "Don't send anymore men! It's a trap!
There's TWO of them!"
Perhaps the reason the canon was never opened again after the days of Ezra was for the very reason that intertestimental writings ascribe diety to the messiah. Just a thought.