It probably killed it for the people that wanted to switched to ESO... I've played Destiny once since ESO came out. People just need to pay attention to the fact that not everyone shares their game preferences. There will always be some people around until Destiny 2 comes out. However, certain games will pull groups of players away from destiny a little bit at a time. Then their will probably be a surge back towards Destiny with new content... I'm sure people were thinking Destiny would kill COD. It's still around, but a lot of people left and started playing Destiny when it first came out. Now, plenty have gone back to COD since the last game release.