Riot You should try to adjust autofill a little bit at least, if u don't want to make big changes.
SInce it seems you don't really want to make big changes on Autofill you could atleast adjust it so that the % chance is overall lower and the Queue average time goes a little bit up at least. The main reason why i say this is that i'm pretty confident despite queue times going up, getting into matches won't even increase with mentioned change, because alot of People at D2+ Elo are dodging anyways whenever their jgler "as a example" is autofilled which auto indirectly increases "queue timer" So yeah. Just wanted to bring it up, maybe you would like to think a little bit about it.
In general Jungle at least is not a role that should have Autofills when i compare it to the others, as unfair as this sounds, autofilled jungle games are a complete waste of time in High elo and completely just rng outcome. That's why i dodge every single game when i have a Autofilled jgler at such high Elo.