No. More like Kishi nerfing Sasuke. Notice, Sasuke never uses genjutsu on Naruto. Sasuke used genjutsu on Danzo, Itachi, Ay, Bee, Cee, White Zetsu, Deidara, Orochimaru, Kabuto, Sakura and Sai, but never Naruto.
We know Naruto is vulnerable to genjutsu too.
Kishi stating Mokuton and Sharingan combined can control a bijuu and jin, make it canon. We never saw it happen in the manga. Yagura was off-paneled, and most of the jins and biju were caught and suppressed by the Akatsuki with other means.
The fact that Hashirama controlled several Bijuu and later gave them away, Yamato using his mokuton to suppress Naruto and that the God Tree was actively absorbing both Naruto and Bee's chakra forms during the war, demonstrates Mokuton's power over the Biju.