In truth, this kind of violence pales in comparison to other fights they've seen, that they've been in, but reviving from death over and over tends to numb someone to their own pain and trauma, at least superficially. Violence on others, though...

Frisk watches Lara warily for a few moments before getting back up to their feet, dusting off their knees. "I'm okay."

They look around, then reach to grab Lara's hand and tug her back along further into the complex. "C'mon, I saw some more kids back this way!"