We race horses to find out which is the best: which is the fastest, which is the best sprinter, which is the best miler, which is the best middle distance horse, which is the best stayer, etc etc.
Everything we do with horses is to find out which is the best: dressage to test the discipline, cross country to test bravery and stamina, showjumping to test skill, etc.
The horses did not "need" to be drenched in water, the Stewards took the decision on the day that as it was unseasonably warm they would take evasive action to avoid any collapses due to dehydration and EVERY horse that crossed the finish line was soaked with buckets of water. Unfortunately, for whatever reason, the BBC did not show this or talk about it.
Horses do die taking part in cross country events - I am not aware that anyone compiles statistics so cannot quote figures. But you also need to take into account the sheer number of races that take place in this country every year - thousands and thousands. In fact there are only 2 or 3 days a year when a race meeting does not take place, the same cannot be said for other equine disciplines.
The reason people, myself included, enjoy racing is because to see a Thoroughbred (a man made breed bred for the pure and simple purpose of racing) in full flight is a magnificent sight. To see a horse and rider in perfect harmony is to see poetry in motion. You only need to watch the races of horses like Sea The Stars, Dubai Millennium, Secretariat, Istabraq and Kauto Star to see utter equine perfection.
If you do nothing else this weekend, tune in to Channel 4 Racing on Saturday afternoon and watch the Greenham Stakes from Newbury at 3.10pm. There you will witness probably the most anticipated return to a racecourse in many a year when the Champion Two Year Old of last year FRANKEL makes his seasonal debut.