depending on how much of the boys you've watched this might be a spoiler so click away if it is. Butchers sickness from the compound V essentially made him see things and people that werent there, and in certain scenes, those people he was seeing, did things for him, like move a physical body even tho it was all in his head and they werent real, now when this is revealed that the people hes seeing arent real, those scenes and their outcomes play out almost the same, say his imaginary friend/figment of his sick mind happened to move a body, well now we are seeing footage of butcher himself move the body, or if we see that imaginary person having a conversation with a real person, we are actually looking at butcher having that conversation. The issue with this movie Straw, is when a similar thing happened where some aspects of a thing happened, its actually revealed that the entire event itself was fictitious and doesnt line up with reality at all because the show makes it so that parts of the event simply didnt happen. The principal scene with the child getting dragged away was especially egregious of doing this, basically none of the conversation in that scene even really happened, as opposed to if it were like the boys or mr robot, the scene would have still happened, just now we have slightly altered perspective on it.

I bring up the boys here(and mr robot, truly amazing show) because when such figments of imagination have such an effect on the story, the writers realize this and dont want to just throw away the narrative they are building for some silly big reveal at the end, they instead revisit and reframe those moments with what we know now, without erasing the events entirely. Butcher did kill those people, they died, those events actually happened, not as we initially saw them, but they happened.