Following the death of Kurgher, the Mensch tribe lizardmen that were still in the lake and its vicinity were hunted. The hunters were obviously Var Agus' men. This was a normal course of action but unfortunately, until Ed and A got onto the boat, no one took the initiative. Not en masse anyway.
This meant that some enemy lizardmen managed to escape and that was very dangerous for them.
'They could run back to the Mensch territory and try to form a resistance' The chances of this were small but not to an impossible margin. One of the main strengths of the Mensch tribe was their large numbers following their conquest of most tribes on the floor.
With enough cannon fodder, it wasn't impossible to win a pyrrhic victory.
Even then, the chances of the Mensch tribe's impromptu resistance winning against Ed and Var Agus were slim. This strength was also one of their weaknesses since they were probably not very united.
