Because Bungie needs to make things obscure.
You may have logged into Destiny 2 and found yourself wondering “how the hell do I access these haunted sectors for the Halloween event?” The quick and simple is that you just go to the tower and click on the node at the top, right here.
But Connor, you benign fart, I hear you say. I don’t see that button on my screen. Well that answer to that is also simple. It appears you have to complete the first quest that Eva gives you upon starting the event. That means completing three activities and obtaining 100 candy out in the field. This shouldn’t take you more than 10-15 minutes if you’re doing lost sectors or public events.