Why is Grasp of the Undying reduced for ranged champions?

They can't benefit from it the way tanks can because they are ranged, and there are only a few ranged bruisers (Gnar is the only one I can think of off the top of my head). Grasp of the Undying is even being nerfed on the PBE because it is too strong on melee champions like Ekko. I understand that it's easier to proc on ranged champions, but the vast majority of the time, ranged champions do no take Grasp because they do not benefit from it since they do not build tanky. ADCs build AD, crit, and attack speed, not health, and they get more value out of Fervor and Warlord's. Mages build AP, and assassins build AP or AD, so neither would get extra value out of Grasp. Squishy champions would only get good sustain for lane phase, and then it would be useless later on, but there are already better options for the lane phase. It just doesn't make sense to me why the Grasp reduction for ranged champions is around when only Gnar (who isn't doing great) and a couple other champions would benefit (maybe Graves? but he's getting nerfs on the PBE so he will have to build more damage and less tanky).