I am phrasing things carefully because although the article was misguided in my view it is for the panel to decide whether or not to take it into account.
Yes, this exactly. And I'm sure, should either party want it to be taken into account, both will be invited to give their submissions on that before a decision is made.
@Signalbox yes, if a witness is heard in private then their statement (or at least the bits relevant to the parts heard in private) would also be in private. And that material would be redacted out of the final public determination.
Whether any of the parties in the hearing are allowed to share documents with the press then that, I'm afraid, I have no idea about. It never occurred to me that anyone would! Registrants tend to either not turn up at all, or turn up in their smartest suit very much on their best behaviour.
My flabber is ghasted.