Quote from TK-421Wizards R&D: "Hey, the Hunger Games was popular. Think we should put something in Theros for it?"
Creative: "Yeah. We've got a god of war, that makes sense. Let's call it the Iroan Games."
R&D: "You think that people will pick up on the blatant rip-off?"
Creative: "Good point. Let's make this years champion female too!"
Hunger Games is a fusion of the Gladiator Colosseum and Olympics which are also a clear influence on the Games devoted to Iroas. This is wizards making sure they hit all the tropes that people associate with greek mythos, not a cash grab on hunger games.