Dewey Decimal system?

Small niggle - sorry to nitpick, but 3 minutes into the game and I'm irritated! Why does Dana wonder if she still remembers the Dewey decimal system when the library call numbers are written in Library of Congress format? Why bother having her make this comment if the writer couldn't be bothered to check what the game was using? Seems sloppy. (And I think Lucy1997 has already mentioned in her review that Italy doesn't use Library of Congress.)

just to cause confusion.