Finally, there is a slight bit of hope. Abinadi gives a final condemnation that does allow for repentance. If they repent, they will not be utterly destroyed. The bondage and other calamities were to come based on the past unrepentant condition, but the people of Noah could stave off utter destruction.
It is interesting that, even if they were to be destroyed, they would have a record left. The destroyed Jaredites left a record, and if the people of Noah were to be destroyed, they too would have a record. Based on the way Mormon used that Jaredite record, Mormon would certainly have included Noah’s people as a bad example of how disobeying Jehovah would lead to destruction.
There was sufficient repentance that they were not destroyed. They did have, and did give to King Mosiah (son of King Benjamin), a record. That record would not be of a destroyed people, but rather of one who repented sufficiently to avoid the prophesied destruction.