No use. They are not the Courts of Law.
If their business partners sue them, the Court that will decide whether it is an Act of God.
Due to the high amount of money involved, most likely both will engage Senior Counsel and the legal fight will go to High Court.
If the Fire Service or SCDF official report is that the fire was due to specific reason (and not an Act of God), then wait and see.
The business partners may not sue because they want to preserve long term business relationship.
If they don't sue, Shell will be appreciative and future dealings will be especially cordial.