First, I think that's because he's actually pretty empty. Second I also disagree about he's not a trope, he's actually one of the VERY typical one. The super-cool character who is also designed to die to either make room for or push the rest of the cast. Top of my heads let's see ... Duncan from Dragon Age Origin, Mother Queen from Suikoden 5, Jeralt from Fire Emblem Three Houses, General Ouki from Kingdom, and a lot more. Seriously, he's the type of character that after 2 interaction I was like "yep, this guy gonna die, soon".
Here is one of your (J)RPG 101: if the parents of an important character appear in the same story, there is a good chance the parents are there to die. And the cooler the parents, the higher the chance of that happening. It's very old formula.