The two entities were too powerful; neither was willing to tear off their disguise and fight a battle under the scrutiny of the Heavenly Dao, so it evolved into a standoff, a proxy battle between their agents without either side taking direct action.
When the members of the Yin family appeared, the hierarchy was extremely clear. The older and more ornate their clothes were, the more powerful they were, charging ahead at the front. The numerous ghosts were continuously dissolved and cleared away before them.
The closer the clothing style was to modern times, the less attention was paid to funeral garments, and they were further behind, responsible for cleaning up the leftover miscellaneous spirits from the "elders" ahead.
As for Yin Meng's grandfather, he tried hard to charge along and his Deadman's Evil Qi was also dense, yet he was still positioned at the back, having not encountered a single ghost and not having had a chance to make a move yet.
