Winrate factors in everything (skill, popularity, power, weakness, champion difficulty, "fun")

What do I mean by this? Just like riot said, winrate doesn't mean balanced. Winrate is literally the amount of times a champion wins across all elos. Whatever the percentage is, it doesn't mean the champion is strong or weak because of all the factors I mentioned and other factors I didn't mention. Take lee sin for example. Mechanically intensive, all rounded, high mobility champion. Everyone complains about him yet his winrate is 45%. Why? Because if played correctly he can be really strong and if played incorrectly he can be useless. If all champions were like this, the game would be "balanced". I say this because the champions with high winrate are usually the brain dead champions like annie (yes annie is an easy champ don't get mad at me for pointing out the obvious). If every champ was as mechanically intense as lee sin there winrates would drop to the same as lee sin. Azir is another example. Low winrate but yet still played in the LCS. His mechanics aren't easy, and if you master them azir is really strong. The champions with higher winrate don't always mean they are stronger than those of lower winrates, it just means they win more because of all the factors above and other factors I am not aware of. Take Ahri and Ori as another example. Ahri with all her mobility and safe post-6 and all the damage she can do versus ori who has to watch her mana early, not much mobility unless you substitute it for damage, and needs athenes/morello first item for mana but has a really strong late game. It's no wonder ahri's winrate is way higher, ori is much harder to play, and not every game makes it to late game.