Why would you nerf Reno?

Reno was fine as was; either you end up waiting til the deck has only singleton copies of everything left or have a singleton deck. Why now of all times (with cancerous bs like Deepcrapper Brann and the Astral Golem and the Rogue being able to make 16/16 windfury stealth mechas and the druid being able to make infinite dragons) plus he is neutral, meaning any deck could play him. Why would you nerf Reno in the face of all these other imbalances??