First of all, those True Gods at that time were not weak. Based on the current strength of the Abyss World, cleaning them up was indeed not difficult, but it's believed that if they were cleaned up, those True Gods would certainly resist. Thus, even if they were suppressed internally by the Abyss, although the goal could ultimately be achieved, the destruction inside the Abyss World would probably be very severe.
Of course, managing to clean up those True Gods in an extremely short time at that moment was considered a victory for Zhou Tian. In that situation, regardless of how severely the Abyss World was wrecked internally for achieving that goal, Zhou Tian was confident that as long as he saved himself, no matter how heavy the losses were, he could quickly restore the Abyss World's losses.
