To put it more directly, the struggle at the periphery is endless; as soon as the teams in the second level are eliminated, the passages they occupied will reappear, and those who did not enter during the first wave can continue to compete for the qualifications to enter the second level.
Moreover, teams that are wiped out in the second round and eliminated must rejoin the qualification battle, waiting for other eliminated teams to appear, thereby competing for the passages.
This peculiar rule makes many guilds hesitant because everyone knows that wiping out in exploration instances is inevitable. You don't know what situation you'll face, which boss or event you might encounter, and a team could easily be wiped out.
But waiting for others to explore clues is also unrealistic. On one hand, there are too many bosses with great variation, making other teams' experiences non-applicable.
On the other hand, entering the second level will introduce a progress bar.
