Also the alphabettii - spaghetti can confuse the debate.
IF, and it is a big if, the evidence shows that this aeroplane left the ground at less than required aerodynamic flying speed or failed to maintain speed for more than a few seconds then it simply aerodynamically could not fly. Most student pilots who have studied the principles of flight could deduce that.
The reason for that could be down to the complex issues people are throwing into the ring here, or it may not. The only people who will truly know are those that decode the Flight Data Recorder.