That’s the paradox tho… if they go through, they fulfill the timeline of the future. If they don’t, they break the timeline and now there is a new chance for control to reappear and restart.
The other thing is … these are time paradoxes so whatever happens creates a new universe and we will never become aware of the alternate versions.
But you do have a great point … I was so excited watching the finale that I didn’t think of that.
There are plot holes everywhere that you could fly a star ship through … but I still enjoyed it.