Zhao Hai had no idea how the people in the ark were feeling. What he needed to do now was to take down the Protoss cities one by one and take everything that could be taken away. He didn't want to leave anything for the Protoss.
Zhao Hai captured all the gnomes he could. He didn't leave a single one alive. This was a blow to the Protoss. After all, the gnomes 'farming provided the Protoss Army with food and water.
It was for this reason that Zhao Hai didn't want the people on land to see too much of it. If the people on the ark saw that the God in his heart was commanding the undead creatures to plunder the Ark's loot with all their might, it would be embarrassing.
Zhao Hai's group advanced very quickly. Although there was some resistance from time to time, with Zhao Hai's presence and the blood Thunder beads and javelins, the Protoss were annihilated in almost two moves.