In the dog world we call this 'kennel blindness'. In other words Fifi and Froufou were champions, so you bred them and got Finangle. Now you fend off the cats standing around the show ring because of course, Finangle is perfect and they should be able to see this as you can. Unfortunately you didn't do your genetic research and Finangle's ear might be a little longer than it should be, and his curly tail when the breed standard says straight? Poof, doesn't matter, because his breeding is perfect.
I applaud others' successes. My children adored the Harry Potter stories, and it saddens me that Ms Rowling's adult novel isn't a success also. Like you I haven't read it because that kind of story isn't my cup of tea anyway. So it makes one wonder, given the reviews, was she given the right advice? It is a reflection of the whole industry when a publisher has kennel blindness in favour of raking in dosh.
The one thing about genetics is that often the results of mating don't produce champions until three or four breedings down the road. But will consumers wait that long to find out?