La unica forma que veo que podrian nerfear esto es mediante a que su daño sea mas enfocado a la vida adicional adquirida y que tenga un mejor escalado con la vida, asi se le quita el daño base de la runa.
why do people love taking scorch for laning, it's so useless, why not just take gathering storm for TF instead for a free +48 AP at 30 mins with a scale champion like TF?
because tf is already a scaling champ, he doesn't need the extra scaling from gathering storm, he benefits more from a little help from scorch in early laning phase