Indian Railways — last moment platform no change

Sir,
Yesterday my wife along with my 2 daughters (14y & 6 y) were traveling from kanpur to vapi in train no 22443 at B2 6&8.First the train timing was 6.20 since she was far away from station she travelled 3 hours before to reach at station in time & when she reached station at 4 PM it was been informed that the time has been rescheduled & now the train will depart at 9 pm.OK no problem she allowed her relatives to go as it was confirmed that the train will be leave from platform no 7.but at last moment it was announce that now the train will be depart from platform no 4.Now since the train was already late by more than 3 hrs why it was not decided that from which platform the train will depart.Can you guess what problem she have faced to transfer luggage from platform no 7 to 4 at last moment with 2 small kids.why the platform shifting decision has been taken at last moment when the railway dept was having enough time to take decision. there were also a senior citizen couple just think how difficult it would for them to transfer with luggage