400, the data shows there is very little fatigue at EK. See for yourself, the extremely small number of ASRs weekly regarding fatigue. Doesn't matter why pilots are not reporting, the data shows it's just not there. We can complain to the high heavens, but when probably less than one percent of ASRs are fatigue related, those that could make changes do not see a problem.
And do you not think insurance companies are data and statistical driven? What else can be analyzed? Complaints on pprune.org?