I feel like a lot of backlash of Joel dying could've been mended if they actually tried to earn the right in the fans eyes to kill of Joel instead of killing him, then trying to justify it afterwards. They could've built up Abby's character before hand instead of killing off Joel and having this awkward situation where everyone is mad at this character and doesn't want anything to do with her what so ever. You could've also just let Ellie kill Abby and gotten a cliché, vengeance doesn't solve anything story across. She went home to Dina being gone, Tommy basically AWOL, and lost the ability to play the guitar which was a connection to Joel.