Healthy Winrate ≠ Healthy Champion

Title. You have to take other things into account, such as champion difficulty, play rate, ban rate, average CS, etc.

Diana is not a healthy Champion. She's in desperate need of a rework - because she either stomps low elo, or does completely nothing in higher elo. She still doesn't fit into a certain class (She has a fighter Kit but is built as an AP assassin). Her kit is outdated.

Same with Irelia, Yasuo, and Akali. They've maintained a fair winrate, but Riot's finally realized how unhealthy they are.

So for the next time you comment on a post that's complaining about a certain champion, keep in mind that their winrate isn't an viable overview of the champion's state.