Higuruma indeed did everything right, his calculations were totally on point, and the case filed against Sukuna was the best shot at taking him down, everyone Hope's lingered around the success of Higuruma's plans, Nonetheless, Sukuna wasn't about to go down easily!
All Higuruma plotted out didn't see the light of day because Judgeman screwed up, that's exactly what most assumed, However, Judgeman didn't screw up, this may sound absurd, well let me explain, Judgeman Ruled Sukuna Guilty of his alleged crimes, Sukuna therefore faces Confiscation and Death penalty, the underline word is confiscation before death penalty, whereas Judgeman never indicated nor specify what was to be confiscated, meanwhile Higuruma already assumed Sukuna ability to use Curse technique is to be confiscated, however, the target of confiscation was someone already wielding a curse tool
moments before Yorozu's demise, she created Kamutoke, a vajra-like curse tool, through a Binding Vow and gifted it to Sukuna, later it was delivered to Sukuna by Uraume before the clash between him and Satoru Gojo, Meaning all this while Sukuna already has been wielding a curse tool, so the Confiscation was directed at the curse tool instead of Sukuna, many may be annoyed at this but here's a pure fact, special grade curse tools are insanely powerful, a fine example of this is Toji fushiguro "Inverted Spear of Heaven", it was indeed an unparalleled special-grade cursed tool in terms of nullifying cursed techniques it comes in contact with!
Judgeman confiscating Sukuna special grade curse tool, was not necessarily a wrong move, considering he might have assumed the death of many in Shibuya happened due to the use of a special grade curse tool, which by all means seems reasonable, However on doing that he left Sukuna with all his Curse techniques intact, which eventually lead to the defeat of Higuruma
