Daystate simply don't have the same reputation amongst FT shooters as they do amongst HFT shooters.
The GP was Daystates first real attempt to produce something FT specific (I'm not really counting a half hearted MK3 in a big stock) for quite some time.
Maybe they'll get round to sponsoring a lot of the better FT shots on the circuit and then just watch the popularity rise if the results go well. However, I suspect that AA have probably got all the best (that were available to sponsor) sewn up already.
Looks like Daystate missed a trick with John Costello too. He was Daystate through and through at one point. I doubt that anyone could part him from his Steyr now.