I certainly think if the information had been supplied as requested the WA messages wouldnt have become a news story. Its background information. Nothing will be released that isnt pertinent to the Inquiry and lots wont be released even where it is pertinent, not even to interested parties. I dont think Hallett is interested in a hatch job - thats certainly not her remit.
Its the resistance to providing the information, redacting information, Johnson suggesting he was willing to supply unredacted what the Cabinet Office wasn't, the Cabinet Office testing the legislation (against legal advice I suspect) and then Johnson's subsequent failure to recall his number - combined it is newsworthy.
I hope what we end up with is a greater understanding of how to got to where we were (not sure that makes sense but you get my drift). Fail to prepare, prepare to fail etc.