You assessment is fair, but there is a lot of data out there that you simply won't find by using Google search. One exemple is the "A collection of unmitigated pedantry" blog which I found after someone used it in a comment when replying to me.

If you google "Iron processing in the middle ages" you won't find Bret Devereaux' excellent series[1], yet it is a much better read than the Wikipedia page.

[1] https://acoup.blog/2020/09/18/collections-iron-how-did-they-...