I used to think that before the update, I wanted to ask my sister to be a healer with me so that if there's a new player, we can wait for them while watching tanks and DPS died without healer for leaving a newbie behind. So for my unpopular suggestion:

Please only apply the cutscenes when there's a newbie, so the newbies can watch the cutscenes and the experienced players can enjoy the bonus.
If all eight members done it, no cutscenes.