Why can't I just die to random npc mob to avoid the effect?
Why is that affecting you and your beloved event? I am not asking them to remove the event, I'm asking why is the only way to not deal with it is a cash sink or quit playing.
Can you not? I haven't tried that. From what I've seen you can get shed of the plague by falling to your death, leaping to your death, someone curing you and...maybe using the vaccine post infection (not sure on the latter, sorry).
And it is not as easy as some would have you think to get infected. In fact, you have to be pretty much right next to someone infected (green fog surrounding them, glowing eyes) AND have them explode all over you to get infected. It's not just passing them, you have to be right there when they explode.