Once Jiang Yi managed to throw the pursuing King-Ranked martial artists off his trail, Jiang Yi was like a dragon returning to the sea. No one could find him anymore.
The Chaos Sea was just too vast; more importantly, divine senses could not be used here—not even Dao Leng's were effective. The unique spatial zone restrictions here prevent divine senses from working. Without divine senses, they couldn't find Jiang Yi even if they had the Mercury Stones and could use Spatial Zone Turbulence attacks.
Jiang Yi's speed was not bad; he could easily evade the searching scouts while there were only that many King-Ranked formidable martial artists around. How could ordinary scouts detect him? Furthermore, even if they did, he could do as he had done before and charge into a city and attack, then taking advantage of the subsequent chaos to flee.