I'd actually love for the party members to comment on the current plot points while traveling. I liked that a lot in Dragon Age: Origins, party members sometimes just started a conversation between each other that was not exactly important to understanding the story, but expanded on their character because they talked about their abilities, their past, their wishes ... I sometimes even stopped willingly to not risk missing pieces of the conversation because they were all so well written. I also like that about Nier, it feels much more organic if your party members voice an opinion about the current action because it makes them feel much more like living beings instead of dull companions that cling to your behind. This way we could include semi-important stuff (like voicing doubts, sharing opinions, guessing) that spare us from these every-three-steps-15-seconds-cutscenes and still deliver the content in a more organic way.