Mueller did this for two reasons: First to pour gasoline on the smoldering impeachment in the House. There is no doubt the House will vote to impeach Trump by the end of summer. Second, Mueller wants to provide cover for the coup cabal. AG Barr and his pit bull investigator Dunham will prove that the Steele dossier was used as the sole reason for the Mueller witch hunt was phony and the FBI knew it was phony, knew it was bought and paid for by Hillary and fraudulently used it for FISA court approvals to spy on Trump campaign officials and eventually set in motion the whole Mueller investigation. Mueller attempted to destroy Barr’s credibility and make him look like a Trump shill.
I think the American people have had enough and want to move on. The now inevitable impeachment resolution from the House will be seen as a waste of time and boost not hurt Trump’s re-election