I knwo this is a really minor point, but the introduction of 'loyal till the end' Big Richie was super annoying to me. A character we never saw in seasons 6, 7 or 8. It would have been nice to keep up continuity and have a minor character with unknown status appear here instead. Imagine he sees Mark, burnt face and all, as a walker? It would have been more recognisable to fans, and would have fit with the themes of the episode more, and Negan would be able to look at the pain he caused as a leader.
Really minor point, but a nicer attention to continuity would be amazing, as to the fans, the little things often matter just as much as the big. Giving a proper fate to someone who's currently unknown would have been nice payoff instead of introducing someone new we've never seen before. And it's not like it's hard to keep track of. As writers, the easiest thing to do would be to use this very wikia as reference.
just a thought
( alt: imagine Negan seeing the same walker, only they only have one hand. He talks to the walker, calling it Cam ! Now that would be a very cool throwback)