Another Stuxnet "Signature"?

Here's another potential "fingerprint" in Stuxnet: an embedded date corresponding to the 1979 execution of the head of the Iranian Jewish community. With yesterday's reputed reference to Queen Esther, it could be used to argue that this is more evidence of Israeli involvement. On the other hand, I take Yossi Melman's point, quoted in the link, that even though Israel is a prime suspect, it's questionable they'd leave such obvious clues.

Or is it? I still wonder if there isn't a psyop element here along with the cyber warfare element.