Does it make you angry considering how Sasuke acknowledged Naruto being there for him in their final battle in a not so Sasuke fashion and being completely ooc while he ignores Sakura who has done pretty much the same for him? Sakura deserves an acknowledgement from Sasuke for being there for him too. Also do you think Kishimoto likes giving SS problems?
Sakura did get acknowledgement from Sasuke.
Why do you think he apologised to her and not Naruto? Why do you think he thanked her and not Naruto?
As for your other question, I think Kishi just likes giving the Uchiha clan problems, not necessarily just SS.