I think Lucifer had a lot more awareness of things than he really let on to most people, but he's not a super flashy person. He's more of a watch and wait and collect information kind of guy. From my perspective anyways, we'll see if he can manage to bring any of that into FTC with him. It's entirely possible he doesn't just take out Poirot as the hugest obvious threat who has to leave, but rather takes out one of the quieter ones. Perhaps he sees that Poirot has a lot of blood on his hands and if we're a bitter jury, could hold that against him. I don't think he'll take this decision lightly.