1.The talk with Naruto and co had to happen they couldn't just start with pa toad saying im taking you to train with out talking about the code.
2.Sakura in the loop because she's apart of Naruto's team she needs to know the information he does because when it comes time for the battle with Pein she's gonna be kinda screwed if she dont understand what the hell going on.
3.I agree with you on this but we still needed to see the 8-tails plus we dont even know if were gonna see the full fight and if we do they might show Suigetsu and Juugo fight him.
4.If your gonna talk about Naruto getting a costume change you might as well talk about Sakura, Shika, Cho, Ino, Lee, Neji, Tenten, Kiba, Shino and Hinata getting one as well the only reason Sasuke got another one is because they keep getting messed up in battle.
5.Its the Hidden Cloud village in the Lightning country the same as the 2-tails
6.We dont no where Hawk was before so we dont know how far they need to travel plus a day or two must have past since we last saw them and i dont think Madara could tech all of them the time space jutsu so fast if even at all.