...or at least it should.
Because Westeros believed Tyrion and Sansa killed Jeoffry:
Tyrion went on the run at great peril to himself
Sansa went on the run, became Lady of the Vale, gave Little Finger a reason to kill her Aunt, was in a position to secure the knights of the Vale for battle of the bastards and retake the north
kept Little Finger away from kings landing
reunitied Varys and Tyrion
sent Tyrion to Dany
brought Jamie closer to Cersie (in spite of his apprehensions)
caused the Red Viper to be killed
caused the mountain to become more of a monster
caused Tyrion to kill Tywin
caused Cersie to take out the sept, Hightower and Dorne
and NOW what?