It was okay, I guess.
I found the whole thing kind of forced, in TDK and in TKDR.
It's not like Bane couldn't have released the inmates without the lie being uncovered, but it made for a nice moment, a shift of momentum/power, and gave Blake something to confront Gordon over. Gordon never seemed to learn anything from his mistake, though, and I don't think the film ever dealth with Batman's role in the cover up, or Gotham's reaction to it, or to the reveal that Dent went loco, or any of that. And then Batman and Gordon basically just lied to Gotham again after Bruce's actions at the end of the film. The whole element was handled in kind of a subpar manner.