So-- actually responding to this because it’s a concern shared by some people who aren’t the prophets of their own horrible religions. This isn’t really an official ARC response, mind.
The Triglavians, and the Abyss, and actually I think maybe even the filaments and why Abyss diving works the way it does, are all a mystery. CONCORD seems to regard them as a threat, which probably has something to do with their apparent ability to face the Drifters as equals and probably also their little tendency to attack on sight.
(Admittedly everything in the Abyss seems to do that.)
Anyway, we basically don’t know anything about them, and, as with the Drifters, we kind of need to find out. It seems like the only way to learn is via violent incursions.
There are a couple very strange qualities to these raids. It’s been observed that there’s a sort of ritual quality to them-- three phases, each in its own Abyssal pocket, forming a triangle. Each one’s kind of like a trial by combat, a test, a proving. It’s definitely not the straightforward massacre capsuleer wetwork assignments usually end up being. There are some hints, like the materials on the Vedmak-class cruiser, that the Triglavians favor testing new ideas or technologies through warfare.
As a thought, it might be that we’re presently “proving” that we’re worth talking to.