Then dont run it... or run it with only people who want to see the story.... I know, that was hard to come up with. Took me a whole 2 seconds.
That's good because it makes no sense. The story dialogue is there. If the player does nothing, the story will play. Spacebarring is the anomaly. It is offered for those who wish it, but it is not how the Flashpoint works by default. You are asking to change the status quo. You should take the responsibility to find a group that wishes to play that way.