deadhead,
To my understanding it applies to all the findings.
Exhibit 164 from memory was a chart that Mahon based many of his theories on, certainly nothing to do with any alleged cover up.
The Court of Appeal addressed several aspects that were brought to the commissioners notice during the enquiry but ignored by him.
The Privy Council agreed with the Appeal Court decision.
It states "and went even further" making the finding of no cover up a separate issue.
There are many who believe the following is correct. The Mahon report remains unqualified, still the version quoted in law schools, without the rebuttals formed by the subsequent Court of Appeal and Privy Council judgements. There has been no movement to record those officially and correct the Mahon version of the reasons behind the disaster.