This movie was released soon after my father had passed away in a similar situation, but in an FPSO ship, and for that reason, it took me so long to be able to watch it and I still don't want my mother to do so.
My father died saving his crew and I can tell you from experience that there's no justice in this world, nor even for big things like this.
I can only feel empathy for the families of those who died in the Deepwater Horizon, the deep damage the incident caused to them... it's sad to think they probably didn't get any real support from those companies afterward, just like we didn't get any as well from the big Norwegian company my father worked to.
In the end, you can read all the accident reports you can find, with their "consequences" for the accidents sites, but you won't find one that includes the consequences for the families of the deceased ones and the trauma of the survivors.
There should be so much more movies about these "accidents"... maybe it'd raise awareness of how dangerous and risky this work is and why it should be better and heavily regulated and supervised - but not by the companies operating them, but by neutrals affiliated to the Navy, who won't cover up the wrong things in the name of profit. If there was more serious supervision, many of these accidents could be avoided, for the good of the sailors, crew and the sea.