I feel like the prevalence of chaos strategies has also something to do with the impactful nature of the trinity cards, and also cards like dustshoot and the occasional hand reaping effects. Chaos decks just feel very comfortable in the format given the way they can manage resources and interact with the graveyard. Playing other strategies is certainly viable, the issue is that it's much more difficult to develop the same confidence while using a deck that doesn't play serpent, thunder dragon, magician of faith and a bunch of other things that can make you go plus, and help you reach deeper into your deck to recover from a bad spot. And Gigantes is a top tier card but not as game-warping as BLS. And yet something like earth aggro is getting a lot of interesting tops lately to say the least, so something is clearly being overlooked.