I wouldn't mind it but if I read the rules correctly, AI art is forbidden here, understandably. So such tag is perhaps unnecessary. The reason this is allowed here (I contacted admins regarding permission) is because it's not art done entirely by the AI, in fact far from it, as the process video shows. It has an educational value, the exact process is novel and shows to others how AI can be used indeed as a tool, where you are entirely in control of where the image goes.