@blatham,
I'm not sure what you mean by "total exoneration". However the fact is that the rather exhaustive Mueller investigation did not establish probable cause for either criminal collusion/coordination with Russians, or for obstruction of justice. Under our legal system (and that of Canada) that is, most certainly, exoneration in the legal sense.
Under the rules applicable to the investigation itself, any effort to do or probe beyond such legal issues would be outside the scope and power of both the Special Prosecutor, and indeed those of the whole Justice department. Thus, anything beyond such legal exoneration, would also be beyond their authorized powers. In short, what I suspect you may mean by "total exonerati0n, is an outcome that was never a possibility in this investigation, and to suggest otherwise is simply contrary to the facts.
These legal provisions are fundamental to our law and constitution, which prohibit star chambers, and establish that under the law one is innocent until proven guilty by established legal procedures. Ongoing efforts by some to subvert these provisions are dangerous to us all.
Everyone is, of course, free to make whatever judgments they like about the extra legal aspects of these matters, but efforts to cloud the applicable legal distinctions here are positively deceptive.