The article you linked doesn't report on the Mueller report directly, but AG Barr's "summary" of the report.
Mueller himself disagreed with this summary, saying "the attorney general had inadequately portrayed their conclusions" and "the Barr letter "did not fully capture the context, nature, and substance" of the findings of the special counsel investigation that he led. "There is now public confusion about critical aspects of the results of our investigation""[1]
Causing confusion was, of course, the point. It allowed everyone in the President's orbit to say "See? No collusion", knowing that the media would amplify it. Everyone who was already inclined to believe the President would rest assured that this whole thing was a Democratic witchhunt. And when the real report came out later they would disregard it.
Of course when even the redacted report came out, it had some key differences with the summary that Barr wrote:
"The New York Times reported instances in which the Barr letter omitted information and quoted sentence fragments out of context in ways that significantly altered the findings in the report, including:
Omission of words and a full sentence that twice suggested there was knowing and complicit behavior between the Trump campaign and Russians that stopped short of direct coordination, which may constitute conspiracy."[2]
It wasn't just a politically motivated probe. Just because evidence "beyond reasonable doubt" could not be found doesn't mean the crime never happened. And it certainly doesn't mean looking into it was "pysops" or "political hysteria" or "Trump derangement syndrome".
You might want to read articles since that one directly contradicts everything you’ve said:
> The Mueller Report did not find any evidence of collusion, but did find two main efforts by the Russians to interfere in the 2016 presidential campaign.
If you read the report, note that they found multiple cases where people were interested in colluding (e.g. the Trump Tower meeting where they wanted to get dirt from some Russian lawyers) but did not find enough evidence proving intent to bring formal charges, in part because the administration was successfully able to prevent testimony and evidence collection. That’s very different from exoneration.