Rasia getting stabbed is the beginning of a major part in the story. Plus, you get to see the good and the very bad of the main church of this continent. Plus, you get a glimpse of Shin's seething anger if I recall correctly.
Ah vs the hatching quest, and hmm time to why Shin and pvp/friends being hurt was something his friends feared showing itself? Is the church is about to the full wrath of a "god" that were the High Humans.
he got angry indeed thinking she was killed and that black haired guy got his wife killed as well in the same situation so both of them was going on a rampage that make schnee was scared of what if she wasn't an npc at that time