I think there's a wide gulf between predicting the entire course of the collapse of a galactic empire centuries out into the future, and being able to anticipat

I think there's a wide gulf between predicting the entire course of the collapse of a galactic empire centuries out into the future, and being able to anticipate a meteorite impact fractions of a second into the future. At most, Gaal has had a vague, bad feeling about something minutes before it happened. While they may have the second foundation refine this ability and be able to predict things out over longer time frames, as of yet there is no one who can make predictions in any way comparable to psychohistory. Whether or not there is a need for this really depends on where the story is going, which is at this point unclear but definitely not the direction of the original books.