Pressure from the VIP in the back, is more relevant when you know the chief of the polish Air Force was on booard and as an ex-fighter pilot, he did not have that culture of "obey by the rules" displayed by all the airline pilots telling here they would, never ever have bent to such a pressure.
Anyhow, if as I think it was the case, we will never know the truth, as it is much better for those who rule the world to put the blame solely on a mere low rank officer.