It was apparent that her strength was increasing at an alarming rate.
With such formidable power and elusive maneuvers, if this continues, even the Archbishop himself might not be able to suppress her, which will lead to trouble.
As long as Shamara remained alive, the Fallen Legion, no matter how ruthlessly they're hunted, cannot be eradicated. Therefore, until Shamara is dead, Terek has no intention of dealing with this mess.
"It seems we must incur heavy losses." Terek said, 'heartbroken'.
With just a single sentence, his subordinates understood his intention.
If the Silver Knights suffer 'heavy losses', then naturally they would not have the strength to eliminate the Fallen Legion, let alone provoke Shamara. After all, the Fallen Angel is not one of their ordinary opponents.
They could also use this as an excuse to request for compensation from the curia. Why not?