Sorry Cowboy, but it absolutely does.
You refer to "wasn't discredited for any actions" but the IG referred to it being established that he lacked credibility which would put him and the department at risk for any actions on his part where people have to rely upon his credibility. Thus, it has already been established that he is a fucking liar so you now know that a fucking liar led the Hillary investigation. An investigation of stratospheric implications where the public is being asked to have confidence in the professionalism of the Bureau. It "does not carry over to the other" for you but it is a non-starter for the IG and Office of Professional Responsibility.
Apparently you are not morally or legally qualified to understand this basic point. Try putting McCabe before a jury and you will find that just the IG's report alone- without regard to future reports- makes McCabe a defense attorney's dream come true. The OPM and the IG know that. You don't, but you don't count.
Put a bag over your head until the McCabe GJ is convened. We'll wait.