"Actually the author said that the goblins aren't intelligent in any meaningful way and are more like a fungal infection that conveniently needs SV to reproduce"
After initially being disgusted by both Goblin Slayer's merciless brutality towards goblins as well as him continuously drenching her in goblin blood which covers the scents of humans, elves, and women
Goblins being seen as good for nothing troublemaker menaces as a cultural perception is fine and good, especially if material conditions rarely leave the goblins any particular choice in how they eat and get by.