You don't care maybe but they wont introduce a new spell without a new animation. Though given how generic geo spells are it shouldn't matter but I can guarantee that will still be their answer as has been with all other new ja/spell things. Heck they've even used that excuse for simply using assets already in game like unused spells or ones only mobs get.
They can't add visual assets. They can reskin mobs/armor and change stats and quests etc all they want