Arnold patiently waited for Lorcan to get over with his commitment, and by then the report of Arnold's patience reached the ears of the other leaders as well. Thus they hurried into the zone where Lorcan and his men were busy evacuating.
They came under the guise of backup, but their true intention was to see for themselves whether what they had heard was true or not. Much to their surprise, it was true. In fact, Arnold was even helping Lorcan to lift collapsed buildings which they couldn't do on their own.
None of them could believe their eyes. Whatever they had heard and witnessed about the heretic god seemed to be false. If he was truly as heartless as Aimon had told them, then why would he be helping them rescue the elves rather than taking advantage of the situation?