But treesheets isn’t used by millions of office workers across the globe. I doubt treesheets is know by 2% of the HN audience. So it just doesn’t make the news.

Or was the point you knew an obscure fact about an obscure application?

Same applies to many of the more elaborate usages of Excel I'd argue. Only few dive deep

I suppose it shows that it's not an outright innovation in this space, for whatever that is worth.