Is it just me, or has champion diversity improved a lot the past few seasons?

I remember in season 4 and 5 when the most popular champions were hovering around 30%+ play rate. Now when I look at statistics, they're only at around 10%.

There's also way less champs that seem completely neglected. Sure, Skarner is pretty forgotten at the bottom, but it's not as bad as the Urgot-Yorick-Galio+ combo that used to have a permanent place there.