If you go back and look at the list of champions released in order, you will see the last dedicated jungle champion released was Kayn. Back in summer 2017. Are they just more difficult to make or what? There was a period where Sylas jungle was playable but that's pretty much been nerfed to hell. Qiyana has a 39.9% winrate in jungle so its clearly not her intended roll. Come on Riot jungle is already bad as is it is at least give us some champions to play.