I think you are missing the full context of the report. The block by McConnell was for a full unredacted immediate release of the report. That cannot be done for legal reasons, so the report must be reviewed and some parts must be redacted.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .