With out a doubt the public are not being told the all the facts about swapping to smart meters.
As commented on already one of the problems is data collection from consumer locations. Some time ago I foolishly fell for the installation of smart meters at three remote sites in the false belief that I would be able, either by computer or a phone call to the power supplier, to obtain up to the minute figures on consumption and thus my coatings. Nothing was further than the truth. In the first instant, data collection was by a third party. Data being sent via a Simms card to any one of three data processing contractors. At a time convenient to the data handler , this was then eventually made available to the power supplier and later to myself. Now I accept the situation described is different to a domestic user. However I believe that there is much to be done in collecting data and the use of that by others.
Another problem is what of those consumers who have installed solar panels? My understanding is that smart meter technology can't differeniate between any solar panel generated electricity and mains supplied. Because of this there is always going to be a discrepancy between the true amount of electricity consumed against the amount generated.