Re: Eh?
Because in a class action you normally can't identify all of A, so the court lets a law firm represent all of A and choose how to distribute the payout to them. In this case they claim that giving the payout to C is just as good.
Say birdwatchers sue a pesticide maker because its product kills birds. You can't prove which individual birdwatchers were harmed so everyone agree to give the money to the RSPB = a good result.
Only in this case you give the money back to the pesticide maker if it claims it will do some bird watching one day.