I don't understand the logic here. Of course cars sold privately would still keep supercharging for life, but for cars traded in to Tesla, the promise no longer applies. Tesla could sell the used car with whatever supercharging policy it wanted, as long as it was disclosed to the buyer. Why sell these with unlimited supercharging when new cars will only have 400 kWh/yr? The CPOs will be purchased by price-sensitive buyers who live near superchargers and will contribute to supercharger overcrowding. This seems to be an unforced error.