Not sold on the usefulness of individual timing or ground loss data? How about this use for Trakus.
From the DRF
"In a lengthy explanation to the Keeneland publicity staff, Michael Ciacciarelli, chief executive officer for Trakus, said Mushka was traveling about 2.2 feet per second faster than Proviso at the time of the foul. Had there been no foul and if the two horses had kept a constant speed for the remaining 380 feet of the race, Mushka would have won by about 1 1/2 lengths, Ciacciarelli said."
Now tell me why this would not be a good thing at every racetrack? I'm not sure if the stewards had this data available to them at the time that made their decision but they could have and in the future I think they should have.
Trakus is an excellent tool that can be used in so many ways. Helping the stewards make decisions about disqualifications is just one of them but that in itself would be enough.