I share some of your frustrations, Unfortunately, the US might not want to provide a more galloping track, if indeed they actually exist. I do think it is a shame the number of times we have revisited Santa Anita.
Problem is jockeys will mess up whatever the track. I am sure if I looked closely enough I could find hard luck stories at all the tracks you mentioned. Personally, if Ryan Moore is considered the best around, I think that says more about the overall standard than it does about him.
Leparoux appeared to be the jock most caught out by the short straight, notably on Valadorna and Tepin.
I thought the three best rides were Ortiz (Oscar Performance), Heffernan (Highland Reel) and Smith (Arrogate).