Although all participants were on the same field, albeit a rather large one, they were not within sight of each other.
The reason for this was the tall grass that covered everything except for the center, where four tilted pillars stood.
Even a very tall person would not be able to see everything that was happening at the Desolate Meadow. Moreover, if you were spotted, you could easily crouch down and disappear behind the blades of grass.
For this reason, most participants were unaware of what the others were doing or how many were left. Sure, there were some like the bald man's group, but there weren't many rogues whose goal was to kill other participants.
After all, the Grim Knights were the only source of the grim shards.
So, Klaus and Ethan didn't have to worry that anyone saw what they did. Sure, they defended themselves, but for many, it didn't matter, especially considering how cold-bloodedly they killed the rogues.
Tap. Tap. Tap.
