Oh, please. Yes, there's a particle of "magic" in it, but the bottom line is money. With racehorses, one crosses them (after the poor teaser stallion has inspired the mare, and gone away thwarted) under careful supervision and proper witnesses, so there's almost no chance of even the slightest injury or mixup; how very magical. There is nothing on the breeder's mind but the dollar value of the foal.
Sure, the darling "babies" that survive birth and are deemed marketable are "charming" -- but if it does not "turn out well," tears are shed for the waste of money, the failed investment. One horse costs an incredible amount of money to produce and maintain, in order to realize a profit, a selling price of six figures or more.
I have seen a lot of failures, solid pedigrees notwithstanding, malformed, or failed to thrive, or dying of infection. Magic of breeding? It's a glorified sausage factory.
CIGAR WAS STERILE