At that time, Shen Shi's incarnation hadn't even figured out the Fantasy Legion, let alone had the energy to study Primordial Energy Spores.
But now, things are different.
Adding Shen Shi's words essentially makes it clear where his interest in Primordial Energy Spores lies.
And when this news reached the Xisoke Civilization, Silla approached once more.
"The Primordial Energy Spores originate from a Relic Device, but it doesn't manifest as a device, instead, it's a technology. When we obtained this technology, there were significant missing parts, so despite concentrating most of the top forces from the Thousand Alliance and researching for hundreds of thousands of years, the results are scarce." Although Silla didn't explicitly say it, it was clear he was concerned about the Human Interstellar Empire wasting too much time on Primordial Energy Spores.
No one knows Primordial Energy Spores better than the people of the Thousand Alliance.