I was talking about how Sam is literally lecturing to the camera in the final episode, not the way it was handled in other episodes.
In previous episodes, they were more subtle about it. If the viewer was paying attention, the subject matter was pretty clear. Although referring to the main character as uncle Sam was a bit on the nose.
But in the final episode he literally turns to the camera and says: "Look, this is what the show is about", and that rubbed me the wrong way. It is as if they underestimated the intelligence of their audience. As if they had to explain it to the two people on the planet who didn't get it, and it undermined my enjoyment.