Sakumo not being Edo'd
Orochimaru randomly surviving (making Jiraiya look like a Jackass because the man who desired power is now alive and it only validates a reason for his actions
Edo Hokage being the only reason the alliance survives...new generation thing was just curb stomped Gears of War Style....their power and accomplishments should have been shown in a flashback only (Hashirama and Tobirama)
Tsunade survived......honestly she shouldn't be alive.
Kakuzu, Hizashi, and Dan are defeated off screen.
Hanzo was somewhat trolled....but st least it was fairly explained and he committed Sekkupu in the end
Kimmimaru and Chiyo don't do any fighting on panel.
Lee isn't seen fighting Pakura
We don't see how each of the seven swordsman are beaten....the animated versions just made them look like overhyped douches....only Ringo had a good death...and Zabuza.
Second Division got no panel Time.....some Edos should have arrived to showcase Hinata, Neji, Shino, and Kiba.
Kisame wasn't revived
Kabuto kinda got mad trolled
Was said to expect Hyuga development....still waiting
And despite all that I'm not a hater....I've enjoyed this arc!