When they run the data through the algorithm and don't like the output, they'll just tweak the algorithm.
I raced in 2 spec tire series in my life. In both instances (different types of racing, different sanctioning bodies and different tire manufacturers) The interested manufacturers had to agree to a set price for the tire for the season and contribute to prize fund. Most lucrative package won. Racers' input was limited to which class we choose to sign up for. In the first instance the tires had very little drop off in performance and most people raced an entire 12 race season on 2 or 3 sets instead of the previous 12-18 sets. In the second instance the tires were just available very cheaply and the prize fund was relatively large. We were allowed only 2 new tires an event. We ran 24 races between Easter and Thanksgiving, ended up buying 12 sets of tires that season, but an entire set in 1993 dollars was $240. A top 10 finish paid your tire bill and entry fee for the event. That works when you have 40 cars+ at each race.