Why?
The lawyers involved have been free to speak with their clients about what they have seen in the unredacted portion (which the lawyers have had for some time, and one assumes have read from beginning to end) since the judge made his order late this morning that the unredacted portion of the ITO is to be released generally forthwith. So, they could not criticized, by the judge or by the Law Society, for disclosing to their clients what is in the unredacted portion, so long as they did not make that disclosure until after the judge's order was made.
And, the lawyers involved could not be criticized for talking with their clients about the possible reason(s) why the Crown decided not oppose the unredacted portion of the ITO being released generally. (The lawyers for the news organizations and the Crown do not agree that the ITO should be divided up into an unredacted portion and a redacted portion, as the Crown wants -- the lawyers for the news organizations are contending that everything should be released -- but the reports of the proceeding say that the Crown agreed that the unredacted portion could be released, and it is entirely legitimate for anyone to discuss what the possible reason(s) might be for the Crown having taken that position.)