I have the PDF version of the Revised box and SFoS as well. I do not recall seeing a stat block for the Balvarix, but I do know that the Balvarin was incorrect. It stated that it had carrier and many other traits, but Burger's ship viewer had only Jump Point. Given the PL of the ship, I was inclined to believe Burger.
The FAQ was incredably confusing, since it stated that the SFoS entry was correct, but what the entry said did not match the FAQ.
This misprint led to a very ticked off Centauri player who has yet to play again. I tried to point out that the Balvarin would be insane as statted in the misprint, but that point seemed to be lost at the time.
The whole situation was a bit confusing to say the least. I am glad to see this thread so that I know the shipviewers were right.