Last I checked there was actually very little real Scientific investigation into Fatigue Management in Aviation. So the question must be asked, if Operators are now able to make their own FRMS, on what are they basing their justification and proof that it will keep the Pilots safe, other than a whole lot of hot air and fancy words that seem appropriate at the time?
I, as I suspect many others do, think that all this will accomplish is allowing Operators to push Pilots even further so long as they can "Justify" it when all and sundry know their only real reasoning is to make more money. If the all operators increase the number of Hours their Pilots are Flying and are On Duty then would it not stand to reason that safety must have been reduced? I don't believe anyone could possibly think that increasing these hours could possibly INCREASE safety in any way, shape or form.