It could have originally been a black hat op (to infect Trump or just claim he has Covid at the worst possible time) and Trump, knowing their plan, turned it around on them and took one of their quivers away.
Now they can't activate their MSM assets for that specific narrative.

Multiple booms just occurred through this event as well:
Many democrats were exposed as vile creatures wishing for the death of the president.
The mainstream media became open conspiracy theorists and humiliated themselves while openly hoping for his death..

The MSM contradicted themselves about masks working since they criticized his car ride.
Now Trump looks like a badass who conquered Covid.
He took away a key narrative that the media may have tried to use against him at the most inopportune time.