Guinsoo didn't really get nerfed

Sure, for melee champion it feels like a nerf because there's no double stacks and such but for ranged champion is a buff. Champion like Kogmaw and vayne who utilizes on-hit effects gets the effect of sated devourer and guinsoo in one item while at the same time only requiring 6 stacks instead of 8. This is more of a power shift of an item rather than a nerf.