Board Thread:Episode Discussions/@comment-1181222-20180404121408/@comment-734582-20180410080730

Darkvas wrote: Can't Konohamaru just Kakashi Hatake that Zetsu? I think his lack of information held him back. Keep in mind that he never saw a Zetsu, yet heard from people that they murdered half the Shinobi alliance, were effectively unstoppable and the army of a literal god.

Yet here, there was suddenly a Zetsu that matched no description, showed powers it shouldn't have, and shouldn't even be alive. That's reason to be very cautious. In the end it had none of the really OP stuff so he should've just Rasengan'd it from the start, but it easily could've been the kind that absorbed Ninjutsu and whatnot.