After merely a couple of exchanges, both teams had both lost two members of their squad. Even though it may look as if it was an equal outcome, the reality was far from that.
Team A Murder of Crows had never intended to fight head-on with the Kyushu Squad. Thus, Spring Halo's control abilities in this fight weren't especially important. Additionally, the end goal of the strategy this time around was to flank the enemy on all sides, which everyone had already achieved at this point. Thus, Fearless' role in planning the battle had already been achieved the moment he gave his last order.
However, the Kyushu Squad were on the defense this time around, and thus the Tanks were the most important. Now that Omnidirectional and All Encompassing had both lost their lives, it had directly resulted in the Kyushu Squad losing their most important line of defense.