Actually no I think it should be an option. I don't mind clicking the button every time myself, but I'd prefer it if it went along on its own as an option. When in a voice acted cutscene, I go at the pace of the voice acting. So it'd be easier for me to do that. I also believe that if it isn't already an option, add an option to turn off the voice acting completely for those who best understand by reading and would find the voices distracting to their intake of the story.