Well, today Paul Sperry confirmed that I had read Team Mueller's intentions correcting. Sperry tweeted (and his feed today is HOT) that buried in the Mueller Dossier is a passage that provides further exoneration for President Trump:
Further exoneration buried in Mueller report: "The investigation did not establish any agreement among [Trump] Campaign officials--or b/t such officials & Russia-linked individuals--to interfere w or obstruct a lawful function of a gov't agency during the campaign or transition."
10:36 AM - 22 May 2019
Sperry is referencing 18 USC 371, Conspiracy to Defraud the US Government. A follower of Sperry helpfully added this image from p. 181 of the Mueller Dossier, which shows the several references to 371:
So there we have confirmed that Team Mueller was, indeed, pursuing that prosecutive theory. Team Mueller came up dry but that definitely doesn't mean that Team Barr wouldn't be able to turn this prosecutive theory to excellent use. The advantage of this theory is that acts that aren't in themselves criminal can become steps in furtherance of the conspiracy to "interfere with or obstruct a lawful function of a gov't agency during the campaign or transition"--and during the following two years.