So the desire "Turn this generated graph into a diagram for inclusion in this PDF report" would be deemed a category error: my desire is wrong.
It clearly makes some folks happy, but to me it's the antithesis of a "tool"; it's more a "website feature". Different strokes.
This way, there's no need to separately generate an image output to include into the document later on.
Different "tools".
That said, I'd love a dedicated application for diagraming, with exports to various formats for other use-cases.
So the desire "Turn this generated graph into a diagram for inclusion in this PDF report" would be deemed a category error: my desire is wrong.
It clearly makes some folks happy, but to me it's the antithesis of a "tool"; it's more a "website feature". Different strokes.