I read someones post about a certain topic on reddit and I know wonder the same:

Is the story with the time travel even possible? In Shadowbringer our original future would have been that we die thanks to Black Rose. The calamity happens, the first is destroyed and 200 years later Graha awakes to change this.

Until the point that the scions and we are taken to the first everything should have happened the same way. Yet how does Hydaelyn and her plan exist if we died in the bad future? We would have no chance to tell Venat everything we knew at that time. Yet the loop was already in existence at that period of time.

IMO it would have made much more sense that because we are now alive and able to travel in the past that we do change their future.

Also wasnt it said that the sound came from within the earth? Yet Meteion was in space.