If it was both engine failure it was coming down regardless. With high quantity of fuel onboard, survivors on the plane would have been unlikely. Maybe with flaps extended the plane could have avoided the medical college complex.
If it was single engine failure and if flaps were retracted for some reason, then it is a pilot error and major Air India system/process failure.
If both engines were fine and it was the flaps not being extended during takeoff that caused it, then man it is a total (huge) pilots error and Air India system/process failure.