I love it, Gon apparently sacrificing his potential/future for the sake of revenge is fantastic stuff. The feeling of foreboding, that a moment that should be a fist pumping "fuck yeah" moment is really anything but is just....wow, man. Just wow. Also, I love Pitou's last thoughts, that she/he was glad that she was the one to face Gon's wrath and not her King. It's almost like she won, ironically enough.