Within the Xuanmen, even their own were slaughtered ruthlessly, let alone Taishu, who wasn't even part of Xuanmen. If there's a chance to kill him while he's weak, why not take it?
When a whale falls, all things thrive.
The chaos and collapse, near-destruction of the Immortal Palace, are what make it the best Immortal Palace in the eyes of Xuanmen.
Indeed, when war begins and the most fundamental rules and boundaries are broken, maximizing gains becomes the only principle; naturally, everything becomes permissible.
Thus, these 'Zuodao protectors' opened with two Shijue Formations thrown into the fray, targeting the immortal insects with relentless bombardments. The higher the damage, the more ruthlessly they struck, the greater the firepower, the more extensively they unleashed—it all became, unsurprisingly, reasonable.
As for the collateral damage caused by the formations, the bystanders killed in the process—it wasn't even within the scope of consideration.
