Yes this was a great read, especially for me. I have been lucky to avoid serious IRROPS and have never experienced this. I am also glad that in my YVR connection a couple of weeks ago this did not happen to me as flights for the next two days were full due to prior weather conditions (I believe it was below the MCT, or just on the cusp). The benefit of being SE perhaps.

It's also annoying the electronic BP's don't automatically update for delays, etc.

Finally this just demonstrates how AC's systems are disparate and don't talk well (or at all) to each other. Granted this case is 10 years old and some systems may have changed.