The issue with Algolia is that they have insane technology but it is mostly used only to search documentation.

They are struggling to sell their techno to people who need them deeply, for a lot of reasons. But one of them is that they are a tricky choice. It is not a database technology, so not a developer choice but also their technology is only useful to developers.

As a result they have to try to sell their product when you need a search but no developers are working on it. That's how you end up powering external and internal documentation portals. That's really a waste of resource