lets stay with the facts
The link you gave us JOVICA is the version of the Onur Air management,who tries to manipulate the case.
Fact is the Cargo door became open.How? If under pressure or without pressurization, a cargo door which is securely lockked will not open.Or?Normaly the bagages in the cargo compartment must be secured with nets or safty belts.So, how did they falled down.And please tell us how much pressure should an airplane produce passing only 6000 ft altitude.I think not so much that it will open a properly closed cargo door.Another question how about door sensors,are they not installed on a MD aircraft?
So please lets stay here with the facts.