Warning to all those who play this game for story.

[oda]

Then make a group yourself, that way you're 100 % percent you won't be bothered by group members over it, and won't be a potential liability to your group.

This goes both ways. The majority rule, it's the only reasonable fair way of doing things through duty finder.

It doesn't go both ways and the majority doesn't rule here. Watching cutscenes and/or killing trash are the default way to run a dungeon. If you want to deviate for a speed run or whatnot, you should build a group for it yourself (or if there is a consensus in a DF group obviously its all good.)