The problem is, and I've been thinking about this since I first said the glitch was gone, couldn't people skip updating the game, get into Zone, achieve Zone Zeus and Airbraker (potentially Own The Zone too) by doing this glitch, then updating and have their score uploaded (willingly or not, as syncing uploads all scores anyways)?
Because AFAIK the PS3 gives you the choice to skip downloading patch updates when the prompt comes up. It forces you to play offline, but it works...
They would have to lock out obtaining trophies for older versions of the game. I don't know if that's possible though.