"We should all remember that the disappearance of this aircraft is the subject of a criminal investigation and as such, not all information available to the investigating team is available to the public.
The investigating team and their advisors may look ill informed but it is wise to remember that they probably have more information than we do."
then it would be fair from them to say "we have some informations that we can not disclose at this point", not look totally inept calculating numbers that at first aren't reliable enough to prove anything