Of course they're gonna remember it, but ya'll acting like every single person who saw the livestream is gonna be raging hard, when I'm saying that the rage won't even stick around for long. Let's not underestimate how easily distracted gamers are, dangle a shiny new trailer in front of them, and they'll forget everything immediately. Why do you think Dexit is dying? People were pissed when it first came out, and now people are just apathetic about it, many of which are still buying the game regardless because they were able to look past it, while some just won't buy it.
This is more like the November direct. Remember, people were having meltdowns hard after the long, drawn out spirits segment, and the deconfirmation of many fan faves, alongside Plant. It was a massive hype killer for many, but you barely hear anyone talk about it shortly after because they all moved on past it. It's still memorable, but it's not gonna be something to rage about when times come.
The fanbase will be fine.