In legal circles we call that a load of BS. First, the use the Daubert expert across cases is fundamntally incorrect an expert in one case or situation is not automatically and expert in another. In addition new facts can be can be brought to light, such as " has this so called business expert even been clearly wrong in previous matters " (think guarantees of NDA approvability as an example).
Other matter that might be called in to challenge under Daubert:for example, justifying Nasrat's shares holding base on his loans to the company which were clearly disproportionate to his current holdings etc.
Finally this is not a court of law (although it may well end up there). It is a court of public opinion, in in that regard one person's opinions (cloaked in Daubert horseshit or not) or no more valuable that another's opinions.
Case closed-
the Honorable Dr Lowenstein presiding LOL