All-forward guns traded stern fire for tactical control

Would the G3's all-forward battery become a handicap in small-unit fighting because it could not fire directly astern?

It imposed a stern blind arc, but G3's speed could let it choose the engagement geometry and keep its battery bearing on the enemy.

An all-forward main battery leaves a restricted arc astern, which could look especially awkward when a ship operates outside a formal battle line. Speed changes the tactical geometry. A faster ship has a better chance to choose its approach, maintain a favorable bearing, and keep the enemy inside its forward arcs. The layout therefore trades all-around fire for concentrated firepower that works best when the ship can dictate position.