Like when I read the spoilers I have mixed feelings on this chapter.
On one hand the fight was great. On the other I hated the plot twist at the end. Until now Naruto's dim-wittedness was frequently played for laughs but it was always made clear that when things got serious he was actually fairly clever and a quick thinker. Now Kishimoto's turned his intelligence into a plot device to influence major events, and shown him to be unable to protect his allies because of his stupidity.
I can understand he needed some more plot-induced stupidity to spirit Yamato away just like Kisame's escape, but having Naruto's friends getting killed/captured under his very nose because he was dumb enough to think he was on an S-rank mission to study armadillo genitalia is bordering on Character Derailment. It's giving me vibes similar to his punching-bag/crybaby/fainting phase from the Five Kages arc. It's going to lower people's opinion of his character and it's just unfair given the intelligence and maturity we've seen from him in such situations in the past.