Looks much better!

I could definitely see using this, but don't think it solves anything for me right now.

I think if the diagrams didn't require horizontal panning, and/or supported interactive collapsing, it would be more effective. As it stands, the text view on the left side of the screen is actually easier to parse at a glance than the tree.

Generally, vertical scrolling is more natural for reading this kind of data, and also works better on mobile.

So a first guess of an improvement is something like: the tree diagram generally grows flat & vertical, with horizontal panning (or a manual "expand" click) reserved for deeply nested objects.