DCing on Hilla's bonus stage (Dimension Invade)

I'm fairly certain, with my statistically insigficant sample size of 4 people, that dimensional invasion is a hacker trap.
More specifically I'm talking about the Hilla Darksoul bonus stage, which is only accessible if you complete the main quest within 10 minutes.

My legitimate friends and I experience client crashes just past the dialogue with Hilla, before the darksoul battle, whereas certain people I occasionally associate with are able to bypass the dialogue and fight and kill darksoul to get the necromancer boxes.