At the end of the day the aeroplane appears to have been fit to fly and loaded correctly. Therefore the crew would appear to have made a mistake in their handling of the aircraft. What they were shown or not shown does not excuse the error.
Should they have been sacked? I donīt think so but I do not have all the facts. They worked for a very young Arab operator with no employment law to protect the crews and no union protection to speak of. Sadly that means the owners can do what they want and no matter what we say or the managers may or may not want the owners will make up their mind and act on it. One of the down sides of working for this type of operator!
It is the local big wigs train set and if he wants you gone thats it as far as I can see and there will be little and managers can do to protect the crews even if they wanted too.