I think they were wrong, but the point is 'moot'. Their decision has been made and it can't be changed now.
The court ruled that the issue is now 'moot' because the people involved in the dispute have died.
He says that they should have foreseen the accident, but that point is 'moot'. [='debatable']
(..) I'm the one who decides what's best for the crew. They deserve to know. Once there's a real rescue plan, we'll tell them. Otherwise, it's moot. Bruce has three months to get the payload done. That's all that matters right now. Mark dies if you don't. (..)2015 The Martian