Naturally, the group that came forward were led by the mayor of the Babel financial district.
They were facing a monster—or to be precise, a hero—who had just vanquished an entire army of stone demons. Since they did not know his race or his attitude toward elves, they decided to employ the most prudent and safest strategy: raising a white flag.
It isn't a sign of surrender, but merely a gesture that we have no intention of resisting, my lord— anything you say, goes.
According to the hypothesis made by their Intelligence Agency, the being's ability itself might be a sign that he bore no ill will towards the elves. On the other hand, he was a clear enemy of the golems—something they had in common.