Messi wants to bring the Barcelona president to his dismissal, but he is much smarter at intrigue. So Messi is in a losing situation. He needed to insist on leaving. Next year will be worse for him. The problems with the president will add problems with the coach and possibly with the players.
Why do you think Messi is in a losing situation? Only because he has to stay another season at Barca? It is Barca that looks unsympathetic after all this drama. After all these years and all that Messi has done for this club, did they really have to force him to stay, no matter what?