>>96882173
because they're legit retarded and lazy.
pic related would actually be perfect art for Blasphemous Act, which is a suicide-bomb boardwipe that hurts your side as well as the enemy's board and is cheaper the more bodies there are in play, which Gyatso taking out an entire room full of firebenders fits perfectly.
Additionally, even the name "blasphemous act" is fitting, since the Air Nomads are sworn pacifists who normally abhor taking a life, so Gyatso unleashing the full horrific extent of airbending by slaughtering an entire room full of elite firebenders by simultaneously suffocating them shows how desperate the nomads were in the face of the Fire Nation's invasion.
Instead we get stupid fucking meme cards that look like ugly proxies