History FridgeBrilliance / HazbinHotel

* Despite Emily having promised she would try to help out, it doesn't seem like she managed to convince anyone, nor did she decide to go beyond anyone else's backs when this failed. While this can be seen as a case of TheyWastedAPerfectlyGoodPlot, if Emily ''had'' tried to help out behind Heaven's back, she could've easily been kicked out ([[FallenAngel or worse]]) as a result, and this would've ''severely'' curtailed her ability to help Charlie and/or Heaven's situations. By staying in Heaven and persisting in her belief that the Exterminations are wrong/Sinners can be redeemed by believing in Charlie, she has a much better chance of swaying people into changing their stances in the future, a decision proven all the more effective when Sir Pentious [[AscendedDemon ascends to Heaven]], right in front of Emily and Sera, to the former's absolute delight.
* The fact that Sera is in front of the door when Sir Pentious manifests in front of her and Emily implies that she was deliberately keeping her from leaving so she couldn't try to interfere with the Extermination.

* Heaven (or at least it's Exorcist army) is shown to utterly despise free will. Vaggie acted against her orders in sparing the demon child, which may have been the biggest reason they exiled her to Hell.

* Charlie should have smelled something fishy as soon as Adam put "stick it to the man" on the list. After all, not only did Adam have no one to "stick it to" since he's the OriginalMan, but that's what Lillith did and she was literally demonized for it.

* Lute's name takes on a new meaning with the reveal that Adam seems to have personally named each Exorcist. The lute is a very old stringed instrument, likely going back to the time Adam was alive, and its also an ancient precursor to the guitar which Adam now plays. Which implies that he played the lute when he was human. This would indicate that Lute was likely the [[MonsterProgenitor very first Exorcist]]. Which also explains her zealousness and personal loyalty to the jackass.

* Why does Vaggie still use the name Adam gave her? One of Adam's gifts in Eden was the ability to name things, which he used to name creatures. She literally can't change the name just the pronunciation. Doubles as fridge horror for her (and anyone else Adam abused that privilege upon).
* Cherri Bomb's rather forward in asking Angel Dust to keep up a night of drinking and partying, but this goes further than simply wanting to get high. Cherri has known Angel for awhile, and so must realize that drinking and partying is the latter's coping mechanism, so she's really trying to get him to feel better by supporting him do so. And thus when he doesn't in-episode, she's concerned in her own way, perhaps wondering if tonight he simply can't cope and that something ''bad'' might happen with him. Plus, it's only after Angel sticks it to Valentino that she sees Angel is legitimately trying to change - as opposed to just pretending to go along with the hotel, like she might've thought in the past - at which point she drops the pressure.
* While Adam mostly just refers to Sera as his "boss" and his "manager", the way she talks to him sounds more like a scolding mother. Why? Because in a certain sense, she ''is'' his mother -- the show's prologue very strongly implies that she's the one who created him.