The “why didn’t Jaha finish the job” works on so many levels. Do you (the person reading, not OP necessarily) remember how scared you were to take your first punch? To break your first limb, or fuck, go beyond physical injury, just do something you know is going to suck but have no frame of reference? And then it happens and you acknowledge the suck but you now also have perspective you didn’t have before.
Phil has none of that. Phil has an adulthood of an absolute dearth of that. So every potential blow whether it’s physical or emotional or mental has the outsider’s perspective to him. When you never got Two For Flinching during freshman gym all year, everything makes you flinch.