PSA: Champion.gg is pretty much useless for anything besides super meta picks.
Stop using it to quote stats for super niche picks
Why is it worthless?
Because champion.gg only pulls a small sample size at the very beginning of each patch. Champions outside of the meta picks end up with extremely small sample sizes. These samples are far too low to draw accurate conclusions from.
Some examples:
Jungle: http://champion.gg/champion/Rumble/Jungle
- sample size of only 959 games
Mid: http://champion.gg/champion/Galio/Middle
- sample size of only 1016 games
Top: http://champion.gg/champion/Shaco/Top
- sample size of only 867
I could grab a lot more examples, but I think you get the point.
If a champion (or role for that champion) is not meta, there is not enough of a sample size to draw any sort of valid conclusion from. Please use a different site instead of quoting misleading and inaccurate information from this site.