Again, Fused Zamasu was never embarassed by a fatigued Goku. Goku had to use his most powerful Kamehameha ever, and it was so strong that it broke his arms (so how was he exhausted if he could fire such a massive attack?). And even then, he couldn't really push back the Holy Wrath, he could only pierce it, catcing Fused Zamasu by surprise. And even so, Goku couldn't finish the job. It took an even greater power to take advantage of Fused Zamasu's weakness. Lastly, let us not forget that Fused Zamasu had been stomping effortlessly those beasts for the vast majority of episode 65.Yes Manga Vegetto punked manga Zamasu [that's how it should be] but this has nothing to do with Vegetto. Non of this changes the fact that fused Zamasu was embarrassed/injured in the anime by a fatigue Goku.
The anime incarnation of the arc was centered more around Future Trunks, and indeed he required a powerful new transformation to deal with this new enemy that was Zamasu, and a powerful new technique to deal with this fused character.Cause Goku actually needed a powerful new mode to compete against a fused character.
A Saiyan 'on life support' does not conjure an attack so powerful that it breaks their arms.But in the anime Goku is on life support
We agree on that. Goku SHOULDN'T have overpowered Fused Zamasu. Even so, it was not such a devastating and humiliating defeat. Especially since Fused Zamasu grew stronger from that minor setback, and evolved into a new, even more powerful, and grotesque form.Some of the worst writing in DB history.
Oh, And small reminder that Fused Zamasu ultimately merged with the Universe and became order and justice itself, and was able to transcend time and space and even defeat effortlessly his opponents. Hahaha, some 'humiliation' he suffered.