Even Meld was conscious of that. He taught Kouki's party of all the know-how about the dungeon. That's why, he and the Knights decided to try their best to secure a safety zone around the teleportation circle, and only Kouki's party were to move on.
Meld wanted to show a bitter smile due to being exceeded in only four months. But even so, after associating with Kouki's party, he and the Knights were satisfied if their abilities could safely secure a safety zone in 70th floor.
Kouki's party current statuses were something like the following: