Hi Mike,
I do not want to upset you, but there are 2 things worth mentioning. There were too many roots removed from this tree at one time. Also, hinoki need their full strength going into winter because of severe dieback. Which is why I recommend never styling hinoki in the Fall. I am not sure this tree will be able to handle regular wintering conditions with the reduced root ball. Also, even though you did not root prune 1 year ago, you still essentially bare rooted it and repotted it. Doing more root work, especially this much 1 year later, is a huge gamble.
Hinoki are best repotted in early to late spring. The best time to style and do heavy branch removal is late mid spring into early Summer. This is because at this time, you will know what you will be left with after winter. I am hoping this tree does well in the future.
Rob