According to the recent findings I enclosed, there was no any impact with those two birch trees. The plane flew above them
I am not sure that I understand. I have seen many photos of broken birch tree (official and many amateurs). Who did broke it by that theory? KGB? It sounds for me similar as the artificial fog theory.
As for the wing, there are registered cases where plane loses part or even whole wing and lands safely.
Tu-154M was very near stall conditions in that moment. Loosing slots and/or part of wing shoud be probably fatal.