No matter how many times you may see a dead body a dead body is a dead body. He was also a comrade, not only that 3 (if the blond girl is young) of them are still kids so dead human body is no good.
If they had a sad/pitying/desperate expression, would make sense, I mean they are literally going into a dungeon. Which means there would be death if ppl arent careful
Why is everyone shookth? They are A class adventurer, ppl dying so gruesomely shd be a norm to them