I don't know why, but for what ever reason people just don't know how to make this public event heroic. 99% people will just kill the ads and destroy the blight domes. Worst is when there is no one around and then after you dealt a few 100 thousands of damage, someone out of no where just comes around and starts killing all of the ads and ruins everything. Really annoying when you are doing bounties on the Dreaming city and you need heroic event completed. It is seriously not that hard to make it heroic. You just step into a taken dome and then walk out and for 4 seconds you are able to damage the blight (big black ball) killing ads heals it and destroying the domes, moves the event to another location.