Everyone was temporarily deprived of the ability to think due to the explosion. Once the dust had settled, they struggled to rise from beneath the debris that covered them.
"Ah, what happened to the Egg Brother..." Because of his "Act first, talk later" attitude, and his disregard for his own life after doing so, that explosion must have pushed the armor and prosthetics to their limit. That's why he did nothing for such a long time, just running east and west with the team... basically, he was just cooling down.
Enough said, as people turned to look behind them... the entire street was unrecognizable. The houses and roadside facilities were all destroyed, and at the spot where the explosives had been dropped, there was now a crater about 10 meters in diameter. Inside the crater, the sewer pipes were severely damaged, sticking out brokenly. At the bottom, only two almost completely burnt skulls of the monster remained, and the insects had long since vanished without a trace.