if you really believe that this "update" cracking is a coincidence then you are out of your mind!
I think someone here got it right when he said that JBking = trueBlue. this is all marketing and a "reason" for them to say: "now we have to release a new dildo, cuz the old one got cracked and is not safe (to make cash) anymore."
they just want to rip you off. I just dunno why sony can't just close the Dev-Eboot leaking.