You missed cold charging, all
You missed cold charging, all common commercially available LiFePO4 cells are damaged by charging when the cells are under 0°C . Some current LiFe battery manufacturers build heat strips into their packs to combat this. Tesla could probably use the octovalve HVAC system to warm their pack but the damage from cold charging should be mentioned as a Con. It's also important to mention that discharging LiFe is similar to the common Li-ion chemistries in the cold.