For a civilization spanning tens of thousands of light-years, it takes only thirty seconds for information to cover all fields; this is already quite a good statistic.
This is civilian technology.
Military base stations have wider coverage, stronger signals, and higher costs.
Kasha Civilization has been making preparations to face the adversary, not for an expedition. The main issue lies in information communication. Once the army goes on a long-distance expedition tens of thousands of light-years away, information transmission becomes a problem that must be considered.
They haven't established any "Collective Celestial Net" in the domain of the Insect Race.
Thus, they need to build base stations at both ends of the "Military Wormhole" first. After every segment of their march, they need to drop several base stations to cover the entire operational area using these stations.
This requires the consumption of a large amount of resources.
