According to pilots, they set the autothrottle ON after approaching angle is at their way to landing and recoginzed them lower than course from the view of PAPI. It says that immediately the captain manually full back the lever to increase engine power for moments but in vain.
The fact that the Thrust Levers were "Full back" was the problem, they needed to be full forward!
Your Politician doesn't know what he is talking about. The trainer said he told the LHS pilot to "Pull back" meaning on the CONTROL COLUM to correct the low flight path, while expecting the Auto-throttle to correct the speed.
There is no evidence that anything to do with aircraft did anything except what it was supposed to do.