Warning: Spoilers for the episode follow.
Stepping off a bit of the intense action we’ve seen in the last few episodes, “Friends” puts on the brakes to develop one of its more mysterious characters in this season–Kenny Ackermann. It’s great to see a continued emphasis on character development, but this episode isn’t this season’s strongest example.
At the end of Episode 46 we saw Kenny on his last leg of life. In a moment, he could turn that all around, but this week’s episode instead dives back into the past to explore his relationships with the Reiss’s, Levi, and his motivations. Namely, the way he views power.
Source: IGN.com Attack on Titan Episode 47 Review