Flightmech.
Of course it makes a difference that the MD11 is mostly operated as a freighter.
In this role is does not draw as much attention when it crashes simply because only the unfortunate crew members pay the price
As I mentioned already, if B777's or any widely used passenger Aircraft for that matter were crashing at the rate of the MD11 with large numbers of casualties the offending aircraft would already be grounded and a fix mandated.
Whether the MD11 can be 'fixed' is questionable though..