More male units are never bad, though farming for trust items is gonna be a pain in the butt. Of course, the two new guys are going to be sitting on the bench if you already have a good core team. Otoh, this does pave way for a possible White Empire Emperor event, which I'm really hoping happens soon.
About the current event, anyone been farming for the three (four) plats in this event? I've been running the 70/6 map numerous times now and got nothing like 70% of the time. Them drop rates too low. I believe my drops so far have been 3 of each.