If it can be determined who.... The report really isn't that clear. It mentions one person, and if that one person wants to acknowledge it, that's fine, but the report also says “MPs”, plural. If it was plural, then it was more than one.
At what point do you carry this forward? You have rules. You have breach of parliamentary privilege. You have things set in place. There's a reason to have the confidentiality, and this goes to the heart of the other reports we might be asking for, and information on prisoners and other things. If we intend to try to keep confidence in a committee and we don't have the rules and we don't reinforce the rules, then we have nothing.
Is this something that should be brought up as a point of parliamentary privilege to determine?