[lisper]

> It's not acceptable to totally ignore actual safely issues being brought to light and respond universally with panglossian emptiness.

Not only is it acceptable, it's effective. Until a 787 actually crashes and provides unambiguous evidence that the whistleblowers are telling the truth, it's a he-said-she-said situation.

[DoctorOetker]

if there is a possibility that further analysis and research (of flight recorders, code inspections, ...) unambiguously proves a problem I don't see why precautionary grounding (by an authority with the proper jurisdiction) would be bad?

[lisper]

It isn't, but that's not what is under discussion here.