All of them are listed as either "in development" or "early alpha", and every single person that has tried to do something even roughly resembling a task you would do with the original product can tell you that it's broken in a thousand ways.

As it stands right now, it proofs little more than it can replicate the post-boot screen of the original products.

Just because every tech news outlet was dumb enough to report it without trying it doesn't mean you have to join the echo chamber.

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There are definitely examples out there that do use a similar relentlessly agentic development style that have produced great results. e.g. xberg[0] (formerly kreuzberg), is a great document content extractor, and in a relatively short amount of time has become one of the most robust and performant. I've reported about a dozen edge cases of documents of various types that were unextractable, and the maintainer (or their agents) were able to add a fix in maximum a day turnaround every time.

[0]: https://github.com/xberg-io/xberg