Where did Omin's second sister come from all of a sudden in season 9? She's actually Jerry's invention, just like Portentia! Chris introduced the latter based on a story Jerry told in season 4, but when Jerry didn't remember it himself and invented a whole new story on the spot, Chris did the exact same thing again and made that second story canon, too!
Viari's two main ordeals in season 9 finale were a stealth comeback by Chris for all of Pat's rules-lawyering earlier! Think about it: first, Chris brings back Danielle the Drow, the only other notable rogue in the series thus far, who basically out-rogues Viari by pulling the same Affectionate Pickpocket trick on him that he used on Vannifer (and it takes Pat a full ten minutes to realize that and to check his possessions!). Then, the falling beholder tank is essentially the Falling Chandelier of Doom trick that Viari pulled on the Viper and his men in season 7, but in reverse!
Why has Chris not only allowed, but actively facilitated the massive metafictionalDeus ex Machina in the season 11 finale, which allowed the party to skip 95% of the Tomb of Annihilation with no consequences? Because AcqInc live events are essentially promotional tours for the Wizards' products, and he did not want to spoil the vast majority of the Tomb's traps and monsters to potential customers in the audience! Oh, and the fact that a module like that usually takes days to complete probably had something to do with that.
