ShyTorque
Thank you for restating what should be obvious to anyone reading, let alone contributing to, this thread: that ZD576 was unairworthy at the time it took off.
All other speculation pales into insignificance against this fact.
No-one knows (or will ever know) just what happened in the last few seconds of flight, but a loss of control is clearly one possibility. That alone could account for no-one being able to "fly the aircraft". As we all should accept, that mere possibility alone renders the "gross negligence" finding untenable.