I also get cheap rate tariff at night, and am happy with that, but the meter could have so easily had duel outputs, essentials and non-essentials allowing the suppler to switch off non-essentials when there was a power shortage, and to charge less for non-essentials. It seems an opportunity missed.
Today saving power as in 1978 will not work, as they would be turning off generation as well as use.
I do think the report missed out the North/South divide,

where the way meters are control changes. But we have seen the silly Freddy Boswell look alike adverts

and the reasons given to have a smart meter are daft, for most people doing the gardening at night would not save a single kWh it would just upset the neighbours and the in home display


most of the day shows zero, and why it has a section for gas when there is no gas in the village I don't know?
Cross fingers, mine works well, in that it allows me to be paid for export, and to have an overnight off-peak cheap rate. But until we got solar, there is nothing it would have done for me.
And cheap rate at night also means paying extra during the day, so unless one has storage of some type, be it a battery in a car, storage radiators, or fixed battery, it really does not help.
It helps the supplier, he can at a flick of a switch turn it into a pre-payment meter, and he can stop sending someone to read it, but for the user, to gain, they must have a way to store electric.
But if my meter had failed to work, it would have resulted in a massive financial problem, as I had paid out a lot of money to install solar and battery, and for them to then save me money it needs the smart meter and an off-peak tariff.