A lot of the church of the husk narrative mirrors what we'd see in the world with those who are advocates for the technological singularity. Much of it is oriented around the narrative of humanity being weak, inferior, ignorant, scared to embrace its true power. Very hostile, very aggressive.

I think it could be more interesting if the Church took a tone and perspective as if it were bringing a great mercy upon humankind, by offering "a way out" from the suffering of one generation of humans dying after another. There's hints of it but, I think it could lean-in a little harder.

I think it would fit more closely to the concept of, "Even the 'bad-guys' envision themselves as 'the good guys' doing the right thing" Right now it's still pretty heavy-handed as knowingly malevolent. I think the Church should completely view itself as saviors and a charity, who see it as their higher calling to save humans from suffering. Less about embracing the Husk as a superior state of being, more about being free from the human condition.

The "It's our right to attain this power" narrative is very twirling-a-moustache villain kind of narrative
Whereas the narrative of misguided charity and salvation is much more of an interesting ethical/moral/philosophical gray area to navigate. "Think of it captain...how long has humanity suffered against disease and cancer...against generations and cycles of violence...to be brought into a world against our will where to be born is to be destined to die. Europa has given us a way to escape this fate. Nobody has to suffer anymore, nobody has to die. Now humanity itself can outlive the stars, and the eternal suffering can end."

Less technological singularity parallels, more of a misguided "there but for the grace of God" kind of tone.