Part of what irked me was how HARD it tried to be associated with BB and TDK as if we didn't know. I hated the flashbacks, I thought they were a lazy way to not have to go into explanation about BB. The only good one was the first one with Harvey, which seemed more like Gordon reliving a Nightmare rather than blatantly trying to remind us what happened.
The flashback in the Wayne Manor scene was dumb. The scene places us as a layman to learn about what happened to the city within those eight years (via terrible exposition) and be reintroduced to old characters and meet the new. The scene then suddenly attempts to put us in the subjective turbulence of Gordon's mind out of nowhere. And then when it's done the scene switches back to objectivity again. It's poorly done and there is no concrete coherence to any of the shot choices. I was slightly turned off by the film by that point actually.