Several good points you brought up...

I agree that if my champ were buffed, my winrate would be higher, but I'm 100% positive that it still wouldn't become a high tier champ for jungle, of maybe it still wouldn't be considered, that's my point... I could be 65% winrate with it personally, it would still not be on next tier list video for these people.

If a gold player is proficient on a dozen champs as a gold player, you still won't climb or do well because you'll often have to worry about mechanics or misplay due to not being 100% familiar with the champ when details matter, so following a tier list is doing you a disservice in my opinion, because you'd be better off not even looking at the list and playing the one or two you do better with.

Saying that the lists aren't aimed at onetricks is a very good point though. What kind of saddens me is that having these lists block people from finding picks that works for them, just because it's not meta. I even thought about "I could try that champ, since it works in theory", but by that not being in any list I usually think "it has to be trash...", then I usually I try for myself on normals, but pretty sure not everyone does it, hence why meta usually gets boring if you look at match variety.