The horizontal space between all OrgChart nodes on the same level is one and the same and it is equal to the horizontal space needed to show the child nodes of the parent with most child nodes. It is represented by the red squares on the image below. This results in excessive empty horizontal space between nodes with no child nodes or no visible child nodes.
This may be observed on the following Dojo runner. Currently the OrgChart has empty space between the first level nodes, and also there is empty space after the last node:
Suggested behavior:
There is no empty horizontal space between nodes on the same level - highlighted in yellow on the image above. In the above scenario, there should be no empty space between the first level's second and third node and no space after the third node, which may be observed, when the first node has no expanded child node: