Mueller's legal theory is based on the risible fiction that "advocacy" and "interference" are synonymous; and further that "interference in an election" is a crime.
Given the dismal state of public education and the hackery that passes for government and press, Mueller's rhetoric will be accepted as a profound and righteous indictment; evidence that 17 government agencies were right on the money about "Russian collusion," etc.
Mueller is doing the typical "spread more mud" action that I come to expect from our overlords.