What are the odds of a dual engine failure?
Not just once in 12 months but now twice?
The only source you can cite for this claim is the media.
There are historical examples of multiple engine failures like that DC-8 that flamed out near Portland back in the days before I got grey hair.
There is the fuel exhaustion of AirTransat's A330 that dead sticked to Lajaes in the Azores (which in my humble opinion was down to incompetent problem solving by pilots - using crossfeed as a cure all)
In each of the above however fuel starvation was quickly obvious as the cause.
Then there are other examples like a couple of 747s, one in Indonesia and another in Alaska which flew into Volcanic ash and suffered multiple engine failures, but those incidents the causes are obvious and explainable.
The Turkish aircraft has no obvious explanation.
Are you seriously telling me that this is statistically common ?
And your evidence for this is what ?