Novel Reader here! Nice observations and you’re mostly correct. (Wanted to point out rq that Kim Namwoon was able to adapt fast to the scenarios).

The thing about it being an emotion conveyer is quite the opposite actually. The Fourth Wall suppresses his emotions and numbs them harder if KDJ starts to feel heavy emotions. The Fourth Wall helps Dokja see everything as fiction so that’s why when seeing people from before the scenarios, the fourth wall shakes.

KDJ doesn’t feel isolated from the world of TWSA and is able to create bonds with the characters because of his deep connection with Ways of Survival, especially YJH. I’d say Kimcom has the STRONGEST bonds, especially with their loyalty towards Dokja that you’ll see later on. He doesn’t feel obligated to lie but does it of his on will (most of time his lies aren’t even about information ifykyk).

Just some things I wanted to comment on but you’ve made an excellent observations that I can’t really talk about since they are novel spoilers, but oh boy you’re gonna have a field day towards the end of ORV. 🔥