Skraal after destroying the Black Ant Workers went on his way. Of course, he is not forgetting the attack on himself. If he were to encounter the first ten Black Ant Workers and be attacked by them he would refer to it as a random wild monster encounter but three hundred Black Ant Workers manifest just after that he has scared off ten Black Ant Workers, it is not a simple thing at all.
It can be classified as a danger and prioritized target in the end. Considering all of the things, A commander of some sort most likely made these ants appear in front of himself and order them to attack himself. No prominent beings in his mind would not mind something like this. It only means that there is some sort of a creature that may make some sort of a future event.
"I am not sure what made an individual attack me but this is not something that I can afford to have."