Most importantly, at this moment Zhou Tian is still being watched by this world's World Consciousness. If Zhou Tian were to fight against the powerful entities of this world, it's inevitable that the world's consciousness wouldn't try to scheme against him. Given the capabilities of the opponent, it wouldn't be difficult at all to scheme against Zhou Tian if it wished to.
The Deity of that Underground Cave Spiders alone could pose a threat to Zhou Tian, and if on top of that there were plots from the world's consciousness, even as powerful as Zhou Tian is, facing such Enemies wouldn't offer any Winning Odds. Therefore, knowing the Enemies are strong, Zhou Tian's choice to avoid confrontation at that time would not be surprising.
