without flashbacks you won't comprehend the episode/manga. They unravel hidden mysteries & give us insight and knowledge and sometimes they even answer our questions to things we didn't know before.. they . So shut it!!
@ DeathandHealing and SkylineGTR, I think you have watched the wrong episode..
Episode 332 contains 0% filler and lesser than 2 minutes recap.
The only flashbacks is about Ohnoki relearns to stop making excuses that replaced his will for hatred and laziness, so he regained the will to cancel one of the most powerful jutsus from the 1st hokage.
In fact. this is cannon too.
just like the flashback of Kabuto soon
That flashback is needed to show how kabuto became evil and why he takes the advantages and skills from other shinobi instead of using his own power + to understand Danzo's goal better.