It says nobody ever tamed Mahoraga before Sukuna, not that nobody beat it. The Zenin oponent (Like Sukuna in the Megumi vs Ponytail fight) could have beaten it which would not give him the benefit of taming it.
10s is their clan's best ct. None of the other bums can do shit to maho
also i think you mean the Gojo clan opponent right? But it was said that the zenin and gojo clan heads both died. I think maho just killed them both.
As for trapping Maho don't think would do anything good as Yuka would be in a state of suspended death and unable to do anything until the ritual is completed or nullified it mean it would buy her time she couldn't do anything with
Cross and Maru's CT is kinda reality warping. Maybe someone more medically focused has something similar but with rct.
Also others could have defeated Mahoraga all we know is that no user of the 10 shadows was able to beat and tame it except Sukuna ( though if he fought him or not we don't know and it doesn't matter since he defeated him without even being full power (15 fingers ))
But i'm talking about 1 v 1 only.
Only Sukuna and gojo has done it so far
I wonder why the Gojo clan designated the 10 shadows as a forbidden technique wasn't Yuta the head of the Gojo clan after Gojo died ?

