Les Abend: The NTSB, in Chairman Deborah Hersman’s words, has been very transparent with the factual data of Asiana Flight 214.(....) It’s bad because the release of information allows the misinformed to reach biased conclusions without all the factual data. (ATC Watcher: "How true.")
Public discussions and speculations about an accident is a fact of life. It's impractical reality for the NTSB and its investigators to keep initial findings of facts secret until the investigation is complete, typically 18 months. The "misinformed" are not tasked in assigning probable cause.