I think the route of 15073/74/75/76 Triveni Express could have been changed if there was not loco reversal scenario at Pilibhit jn which takes about 25-35 mins. This train is important for people of Bareilly and I don't think it's route would be changed. Also travel time btw Tpu-spn via Be is 4 hr 6 min and Tpu-Spn via pbe-bsur would be 3 hr 40 mins. So that would be the difference of 25 mins and without loco reversal the time difference would have been of 45 mins. Let's see what happens next.