Hey there, thanks for checking out the video! My intention behind adding the "incidental dialogue" between party members during dungeon exploration was to maximize what little time we have with the characters. As explained in the video description, Episode Aigis is really long and grindy, which is unfortunate because the sparse amount of story it contains is still very important. So I believe that the character dialogue that occurs in between combat while exploring the dungeons adds a significant amount of value to the epilogue experience. (Obligatory "I do not own this game, all rights go to ATLUS and SEGA, etc.")