If the above is anything close to what actually happened, it is certainly a failure of the whole system. Sully had it bang to rights.
I wouldn't blame the pilots, or the Turkish system in isolation .... this is a typical result of the "dumbing down" of the whole industry by big business. Aviation professionals who can prioritise have been replaced by the cheapest trained labour worked for the longest possible hours.
And there is a lot more like this waiting to happen unless the public wakes up to what is happening in our industry.