I've seen a number of people pointing at this likely being more an issue with untrained pilots than the plane itself. EI, the flight crew on the crashed planes may have had considerably less experience than the minimum requirements most major airlines and all US airlines set for flying these planes.
This seems like corporate PR blaming "3rd world pilots" and am not sure it's such a smart move. If your plane requires substantially different handling & the interface does not accommodate it, it seems to me the problem is not the pilot.
It seems more likely that the plane suffers from some elemental design problems that were insufficiently patched over to pass inspection in order to protect the already invested capital.
