I think you massively underestimate the number of startups with product engineers.
It's becoming a much more popular approach with many high-performing startups, even up to the 250+ headcount tiers.
> The Taro app definitely has a long way to go, and we're also investing a lot into the web app right now as we know that a lot of folks prefer to consume professional content on their desktop.
I definitely find this discrepancy interesting, since I found the app to work much better than the web application! Although this was mostly a couple months ago, so I'll have to take a closer look at the web app these days.
That being said, I found the content super useful - although I found the ordering presenting in the free iOS app to be rather confusing, as I ended up jumping around a lot.
There was a bunch of analysis over on /r/wallstreetbets a while back based on satellite imagery of roads in China, using them to estimate coronavirus recovery levels for factories there.