I think these sorts of tools are dangerous at least until the hallucination (in text or formatting) rate is below that experienced by a careful reader repeatedl

I think these sorts of tools are dangerous at least until the hallucination (in text or formatting) rate is below that experienced by a careful reader repeatedly re-reading a document, which is almost but not quite zero and, depending on the application, potentially even until it's actually zero. I guess they're mostly fine for cases where the extact document content isn't important, but it's probably not common to have a lot of documents that nobody anywhere considers or ever will consider important yet which must be more accessible than pdfs.