When Roan got to the neighboring area, he looked for nothing but Godly Beast Alligators. Those Level Two Carcatira Alligators had the Godly Crystals that the Godly Predator ate back in the eggs zone. Then, there was the fact that the Godly Predator ignored Roan when it saw that Roan was only at the level of a Godly Spawn.
Roan had no chance of saving anyone if he tried to get close to the eggs on his own. The only way to do anything was to get the Godly Predator to leave the area. If it were a Godly Beast, it wouldn't just ignore. The Godly Predator would kill it and eat its Godly Crystal, or kill it simply because it could threaten its egg.
