Breeders cup turf sprint 5f this year, why??

The Breeders' Cup Turf Sprint is a Weight for Age stakes race for thoroughbred racehorses three years old and up. As its name implies, it is a part of the Breeders' Cup World Championships, the de facto year-end championship for North American thoroughbred racing. The distance of the race will vary depending on the host track's turf course requirements[1].
The race was run for the first time in 2008 during the second day of Breeders' Cup racing at that year's host track, Santa Anita Park.
The 2008 race was held at a distance of six and a half furlongs and was contested on Santa Anita’s signature El Camino Real “downhill” turf course. In 2008 the race was limited to 14 starters. Besides Santa Anita, the only tracks in North America capable of contesting longer than six and 1/2 furlong turf races are Woodbine [2] and Belmont [3]. Churchill Downs, which has hosted the Breeders' Cup 6 times, only conducts turf sprints at 5 furlongs [4]. Breeders' Cup Officials did announce a preferred distance for the race, unlike all other Breeders' Cup races.
Because of technical requirements, it was not eligible for classification as a graded stakes race in its first two runnings.[5] Starting in 2010, it will be a Grade II race.[6]

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