With one or two exceptions they went for the guys who were physically advanced for their ages. Contrast that with Albies and Acuna, who while very good athletes and highly skilled, are not the biggest and strongest out there.
I think when it comes to exceptional talent it is time to recognize that it comes in all shapes and size. Look at Altuve and Judge. Look at recently HoF inductees like Maddux, Martinez and Randy Johnson.
I know I don't have the insights and knowledge of professional scouts, but it seems to me that when you need to throw out the book in terms of what to look for when it comes to exceptional talent. I'm talking creme de la creme. Otherwise, the "recipe" for what to look for physically seems to hold better.
When a 14 year old has a goat-tee and is hitting HRs it's not as impressive as the baby faced 14 year old doing the same.
Somehow the Braves missed that note in the scouting handbook.