"Lapis!" Agent 3 yells when she sees the familiar face and the people sneaking up on her. She jumps from her crumbling perch and flings bright green ink from her mop. This is just like in Vista City. The people are likely not going to be hurt by her ink; they aren't ink-based beings. However, the ink can still blind them and draw their attention away from Lapis.

And Agent 3 makes sure to fling some towards Lapis too. This is just another rescue mission. They can do this!