Improve Visitor Duration metric

According to your FAQ, the Visitor Duration metric “only shows people who visit more than one page. For those who visit one page only we default to 0 seconds.”

Our sites include long single-page articles and other lengthy single pages listing information resources. Visitors are able to spend a good bit of time reading over those single pages yet apparently Plausible only counts them as 0 seconds. This is a huge flaw yielding a misleading underestimate of actual time spent on the site.

You also provide a separate metric of Time on Page. It strikes me that you could improve your Visit Duration metric by better incorporating your Time on Page data.