Aren't they the same thing?
How are they the same thing?
one is largely out of the drivers control, the other isn't.
There's a massive differnce between a breakdown/being taken out by another driver and just driving poorly and not getting the car where it deserves. That is teasing out data.
For teh chmpionship the only thing that matters is points table. For making team descions and negotations. You. Need far more data, teasing out this data is but one aspect of many for that purpose.