This guy (SB2 from Reddit) has a good take on what's happening behind the scenes with the IG report:
https://www.reddit.com/r/greatawakening/comments/8r69pj/oig_report_trumps_plan_is_a_lethal_steamroller/
Yes, allowing RR to redact the report was strategic. See here:
https://www.reddit.com/r/greatawakening/comments/8r69pj/oig_report_trumps_plan_is_a_lethal_steamroller/