@Elhao revisit chapter 119. Only Jazz was disqualified for kicking Orobus (though both him and Allocer showed up inside the tent). It was a clever misdirection on the mangaka's part.
Think of it this way: Azz definitely did not have to attack Orobas. But... Allocer probably told him that Iruma and Clara were in serious danger. Iruma and Clara, his two best friends. Moment he heard that, any rational thing he might've done went out the fucking window. Dude was gonna fuck up the person threatening them no matter what. Plus, he doesn't really have anything to gain from winning, since he's Rank 4. He just wants to be stronger to become a better fighter for Iruma.