Yes. The last time we used a SuC on the 15/6, I added 15kW to car, and was charged for 15kW.
That article doesn't actually change what I've said. 15kW went into the car, some of that might have been used to heat the battery or run the HVAC, etc, but I've only been charged for the 15kW that reached the car. Other chargers will bill you for what the CHARGER uses/loses.
For example CPS charged me for 21.34kW on one of their fast chargers, when only 20.2kW reached the car. All those losses in conversion, cable resistance, etc are paid for by you. There was another thread a while ago that discussed why this discourages suppliers from providing efficient chargers.
I like to think that the meter is at the end of the cable in a Tesla, but in the mains supply with other chargers.