Clearly with the tone and manner the Poster launched this thread it would be very easy for us MON guys to get defensive, but the facts as I see them remain:
1) Bigger brains than ours tell us ECON descents save enough fuel to make it viable.
2) The big brains made it an SOP are monitoring our compliance.
3) I've not heard anyone has refuse a request by ATC to fly at a given speed.
4) No one is being pulled up by management for speeding up when required.
5) We like our jobs and our Co. and we want to survive.
Others who would like to fly faster, less efficient, approaches may be frustrated but that doesn't give them the right to cast aspersions the airmanship of others. To my knowledge there has been no MOR's filled against MON by other operators or ATC units, ergo no safety case exists to initiate a change in our Co. ethos.
Regards.