Part of this is a new philosophy for the writers. An unknown future. The big inevitable future that held back everything was always that seen in Days of Future Past and equivalents. That became a kind of default future that was acting a little like a self fulfilling prophecy for the writers.
Hickman appears to have strong views on how mainstream comics should be. In this story so far he has pushed against a focus on alternative futures, a multiverse, duplicate characters or anything that distracts from his central thesis. At some point we will probably get a precognitive character story, most likely Destiny because she was so pivotal in this one, and at that point Hickman will explore the issues.
On the other hand he kind of explored this already in his S.H.I.E.L.D. book. so we kind of know that asserting an inevitable future is anathema to Hickman.
On a basic real world level, inevitable futures trap comics into dated analogies.