If it doesn't make more money for them, they don't care. Period..
Anything that can be done to save the sport has long been established as things the industry is generally unwilling to do. Lowering takeouts, worthwhile loyalty programs, taking drug testing/penalties/bearding seriously, basically anything that makes the gambler think the game is legitimate and puts money in his or her pocket. You can putz around with camera angles, meet the drivers nights, forcing horses to race at 4, racing under saddle, 11am post times, and any other gimmick you can think of and it won't make one iota of a difference in the end.