"Fans" don't understand that this stuff doesn't just magically happen overnight. Vault space - it isn't just adding space, they have to restructure the vault, replacing ours with the new one. I like to keep all my shit, so I'm all for them taking time to do it right. Story in game - it's not. There is no system in place for grimoire in game, so if they decide to do it it's going to take a sizable overhaul. Heavy Ammo glitch - likely 1 -blam!-ing number in a billion lines of code, but changing that number creates a collection of other questions. The list goes on. People bitch because the raids get fixed instead of other stuff, but there's likely a "raid team" focused specifically on that stuff, while other groups hunt down the other issues.