Never in his lifetime that Blake thought the current event happening right in front of his eyes would enter his eyesight. It didn't even enter his mind that such a possibility would happen, let alone him thinking that he would see such a sight one day.
Seeing hundreds of humanoid demons in a relatively close space was not a sight that he hadn't seen before, in fact, he had seen it when he first went into the first humanoid demon's base, seeing hundreds of humanoid demons walking around everywhere inside or outside the base, doing whatever their minds were set to do.
However, the current circumstances differ from that scene. In Blake's eyes, past the buildings of the forest base, the tall walls that were still intact, there were hundreds of demons of all kinds, not just humanoid demons, rushing in the base direction, or more precisely, his direction.