Heaven and Earth could counter multiple existences at the same time, but they still had to contain their consumption of energy. They could develop perfect methods to take care of Noah and other powerful existences, but they would have to ignore other weaker beings due to their limits.
Noah didn't have much proof about that matter. He could only vaguely guess it from the current situation in the Immortal Lands.
The various organizations had multiple cultivators in the higher ranks who opposed Heaven and Earth. That was the common approach to the cultivation journey. Existences would normally fight against the rulers to push their law forward.
However, in general, Heaven and Earth decided to create counters for those experts only after they reached the ninth rank. They would start by making the world reject their existence before moving to punishments that targeted their laws.
