Well, thinking about what was said in the video, would it make sense to spend the time building little mounds or hills and placing the roots all spaced out evenly when they are all going to die? I think there might be some difference in planting small seedlings, I doubt any commercial grower mounds or hills their seedlings when planting thousands of them and the root system is so small when planted. Still, even with the more mature plants I wonder if building the little hills or mounds and spreading out the roots equally is accomplishing anything. For the past year after visiting Tim Bells garden and hearing him say how shallow he plants his plants and seeing how well they do, I have starting doing the same. I just take my hands and pull back the soil enough the roots will be covered when it is sat in place and the soil pulled back over them. I want the plant to be stable but buried just up to the crown not two inches past the crown. I do still take the time to spread the roots out as much as I can, I think it might help keep the plant from sinking down too deep. But if all the old roots are going to die I am not sure that actually helps. I would love to see a time lapse video of the underground growth of the root system after a daylily is planted.