......in addition, regarding "intense" and "inhumane". If you go by figures only you will inevitably tend to by pass the issue of human factors. Legal limits are as the word implies limits. If you constantly force them eventually there comes a point when "intense" becomes "inhumane".
It is most important to have a reasonable balance between business mindedness and aviation mindedness in an airline. As we all know it takes 10 years to build up the reputation of an airline and it takes 10 seconds to destroy it all.
To make a long story short. The current Pegasus roster policy is not only not in conformity with normal civilized aviation ethics but it is also irresponsible.