Wrong I am afraid. From the SON regulations, notice the emphasis on Team and not rider -
The winning team of the Grand Final heat will become 2021 SoN champions. The losing team of the Grand Final heat will become 2021 SoN Runner up. The losing team of the Grand Final Qualifier heat will become 2021 SoN Third Place.
The only time head to head comes into the equation is prior to Heats 43 and 44