but how is that RL's fault.Sounds to me the PIC should be dipping a little more.
The frequency of dipping the tanks is a function of the pilot and the company culture; and the company culture is a function of the management's attitude. Any working GA pilot knows the pressures that the company brings to bear - I've worked in operations where the pressure was to follow the rules, wash the aircraft, and have complete planning; and I've worked in others where the pressure was to overload, go min fuel at every opportunity, and never write anything up.
If companies have a culture of pilots following the rules, then there's enormous group pressure for them to do so. If not, then anything can happen, and usually does.