Why does the stranger

spoiler

escape the supernova?

As soon as I saw the diagram of the supernova I immediately turned off the

spoiler

Ash twin project and brought the warp core to the stranger

I expected to play the whole dlc without the time loop, but it just ends the game. Finishing the dlc it was obvious why you still need the time loop, but it makes the escape totally irrelevant to anything in the game.

A new ending is cool, but I expected there to be some sort of plot point or mechanic involving the escape, but it has no bearing on the game at all besides the optional endings.