Why doesn't Bane get more playtime in competitive?

I love Atropos, It's easy to mid solo, and 1 on 1 ganking is easy with his ultimate. Also, he can stun someone with nightmare on a push, not to mention enfeeble, and he isn't ridiculously squishy. However, I don't think I've ever seen a Bane pick/ban. Why don't comp teams like him?