The words superficially seemed to care for the greater good, but in reality, they failed to fulfill the responsibilities a Captain should have. You could even say it completely favored "Fink."
By not resolving the issue on the spot and letting the resentment of the person involved grow, it was akin to personally planting the seeds of hatred deep in Leslie's heart.
As Captain, Sefeng certainly knew that what he did might not be the best solution to resolve the internal conflict at the moment.
But...
Honestly, he himself was not clean.
In the final stages of the Secret Realm, when he faced that wolf beast adventurer whose strength far exceeded the ordinary, he too betrayed his teammates.
Even worse than Fink, he killed two teammates who were possessed in the bodies of a squirrel and a grasshopper, to temporarily absorb their Life Energy and evolve.
It seems the resentment of these two was not small either, but they just couldn't act out due to his identity as Captain.
