Fractured Relationships in Kingdom Hearts

This video talks about the friendship between Isa and Lea or Saix and Axel, the friendship between Sora and Riku, and whatever you would call the relationship between Even and Ienzo or Vexen and Zexion. Two things I learned while rewatching cutscenes for this video: Vexen has no redeeming qualities; and Zexion couldn't sense Sora and co. either, so what good are his powers if he can't sense half the people in the castle? Little bro was set up to fail.