True... exact details are not divulged. It's surely a cascading failure. The study of the sequence of events got to be analyzed by the engineers and need to take steps to avoid the recurrence of another similar situation.The have messed up tripping sequence and that's why an islandwide failure occurred. The monopoly doesn't reveal what really happened and they do not learn from the mistake. it happened in 2016 and no one in CEB knows what happened and how to avoid the same mistake. Even this time failure true information is not even shared with transmission engineers.
This mafia should be restructured immediately.