“Therefore, if it seems good to the king, to have a search made in the royal archives there in Babylon, to see whether a decree was issued by King Cyrus for the rebuilding of this house of God in Jerusalem. Let the king send us his pleasure in this matter.”
They had a simple solution. Look up the royal archives to see if they can find this decree of King Cyrus. They would do whatever the king decided. This would seem to indicate the later date for the building of the Temple. No one seemed to know about a decree from King Cyrus. The people in Samaria were going to wait until he heard from the king in this matter.