At this point they're treating Haru's unintentional violence towards Shizuku as a running gag; apparently it's supposed to be funny. The show doesn't seem to be taking it seriously, so I would be surprised if someone really confronts him on the matter. I don't like it either, but I do like that it demonstrates how OP she is. That girl can take blows like a champ!
Also, I'm loving the hilarious expressions they gave Shizuku whenever she unknowingly messed up Yamaken's plans to go out and eat with her.
