Ye Mo knew that other immortal emperors could also use the pill to vindicate dao but for the people cultivating primordial chaos chant, it was more beneficial. Primordial chaos chat was a cultivation method derived based on stars and the cosmos. The bamboo grew in the void with star light. It was very precious.
Other than the nine star bamboo, there was also a divine dao spirit item that formed in the cosmos called cosmic lotus. This was countless times more precious than the nine star bamboo as it was a dao fruit for reaching Dao Essence Divine Emperor. In terms of value, it was on par with Yellow Middle Plum and sometimes even more precious.
This wasn't to say that there was less cosmic lotus than Yellow Middle Plum. There was much more cosmic lotus than Yellow Middle Plum but there was only one Yellow Middle Plum tree.
It was a Dao Actualisation Divine Emperor woman who took out the bamboo.