A supreme dungeon like the Immortal dungeon was strict on rules about the passage of groups to the next floor. Because it would greatly restrict the progress of others who were late to complete the objectives and progress.
Usually, many forces over a thousand years had used the Biggest Fist Makes The Rules approach.
But that was only applicable when there were few opponents and you had overwhelming might.
However, this caused a lot of bloodshed hundreds of times and even many saints in history lost their lives because of the fights.
Thus, it became an unspoken rule to avoid unnecessary battles because no way would someone could dominate millions of people just because they had overbearing strength. Others also had their fighters and means to get rid of the tyrant.
In the present moment, the first floor itself had over 48 saints present including the members of Misthios guild.