The biased is real.
Ahri nerf: 55.9% --> 56.07%
Azir nerf: 46% --> 44%
Ahri nerf: 55.9% --> 56.07%
Azir nerf: 46% --> 44%
Azir's win rate is actually 38%
123 Azir 38.13% 5,416 1.70:1 165.25 10,938
Dead last in the league
Win rate isn't the only factor to decide whether a champ is OP, it wasn't fun at all to be harassed by Azir's scaling AA from across the river or get poked to death under your own turret, not sure if he was overnerfed now.
Ahri is too strong atm tho, I tend to agree.
Path 5.3 (and the nerfs to both champs) went out February 11th... The data you're providing is for February 10th...