If you were to keep things as they were, the three elements are as follows: the information the PBO could reveal, if it's already made public; if the DM has consented in the context of an election, as we've just discussed; and, the PBO is now getting a larger array of information. This provides a check to ensure that sensitive information isn't being inadvertently released into the public sphere. If this were to remain, that would still be in place.
On May 29th, 2017. See this statement in context.