Issues with Devourer

Okay, so in the last few patches a ton of champions have been getting nerfed due to being too strong in soloq, correct? Those champions in specific are the devourer jungle item users. Could anyone at Riot please explain to me why Riot isn't looking at instead nerfing the item and fix the unhealthy aspect it gives to the game and jungling in general? Not saying it with hate, just a genuine question as to why they're not touching the item itself rather than just fixing champions or stacking around it. It's been proven to be a problem when packed with rageblade too.