So, the codes are present only in the Hebrew version, right? Wouldn't that immediately put those who don't speak Hebrew at a disadvantage, resulting in an "unfair" advantage for only those who speak Hebrew?
But what if you put the books out first without the codes, and give a couple of good years, so the rest of the world interested has a chance to learn the required Hebrew needed to understand these books?
Honestly, I know of a large number of people who are all of the sudden compelled to learn Hebrew and Aramaic. I know of a case where the person dropped job, school, everything (un-married, no family), and learned Hebrew day and night. He is now pretty much fluent in Classical Hebrew and Old Imperial Aramaic.