Mechanical devices can indeed be made, and obtaining the Black Mist Heart-Gathering Spirit Pearl is quite easy for Zuo Jing.
Besides, there's another factor which may not be crucial but still influences many people's judgment.
That is, Chen Ming has always been working on various high-end mechanical devices, and the biological spaceship that An Wuping created is also immensely bio-aesthetic.
Completely different from the hideous Black Mist Prosthetic.
Therefore, thinking of the difference between what Chen Ming and An Wuping created and the Black Mist Prosthetic.
Many people, although not using this as their primary judgment basis, subconsciously treat this as an important auxiliary judgment factor.
Thus, the situation within the Empire is developing in the direction Chen Ming wants to see.
No one would come to interfere with what he plans to do behind the Mechanical Race's lines.
However, Chen Ming didn't rush to make a move; the Insect Race still needs time to develop.
