Here's the problem.
The Jungle items have to be in some way unique, as otherwise the jungler is automatically inferior to the laners simply for jungling, similar to how the support had a really bad time actually getting any items prior to the introduction of the support items. Thus, you get things like Runeglaive, Cinderhulk, and Devourer.
Not every champion can abuse devourer, but one of the problems with Feral Flare, Devourer's precursor was that if you farmed stacks the fastest, you were a god (and Feral Flare encouraged afk farming your jungle a lot more than Devourer does, as Feral Flare didn't give stacks on champion kill or assist). Feral Flare was an example of junglers afk farming for 40 minutes and emerging a god. Sated Devourer is not, because it comes to a natural stack cap (30) rather than stacking infinitely. This was a way to actually buff devourer, which several champs (like Warwick, Aatrox and Kayle) really needed because they focus so heavily on dealing on-hit damage.
What happens when you remove it? Are these champions SoL?