Fire Emblem Warriors upholds the franchise tradition of archers being crap. They are outside of the weapon triangle, so they have a gimmick to reveal stun gauges. That gimmick is standing still for like 15 seconds while you charge a shot. Admittedly, that shot is really powerful, and that shot has a lot of range, but then you have to close the distance and break the stun gauge, because its very likely that you started charging that shot from outside of your normal attack range. Since combat is usually up close, charge shots are almost never worth it. As a result, archers are doing chip damage about 90% of the time.