At least MUI defeated Moro. This form showed up too early in the arc to amount to much of anything besides maybe forcing Granolah to go all out or flee, and it doesn't even look related to Blue or Rose (the form that Black attained through being a god). Plus the design doesn't make sense, since the only humanoid among Hakaishin still has eyebrows (Heles). Guess that's the inherent flaw in a black and white manga, since it's very hard to convey that Vegeta has a Hakai aura like Toppo in the anime, so they had to change his design (in a very stupid way).
Honestly even Kishimoto (Naruto) does better designs for new forms than current AT and Toyotaro. Look at Godslayer Hearts from Heroes (and I hate that show), that is a form that looks divine.