Since the RR reduction is only for high elo, specially for the Radiant rank, you can think of this 5 stack queue almost as a different mode completly but inside the regular soloQ. I think they want to focus on people that want the full team...

Since Chamber got released, Cypher has been replaced in comps both in pro play and pugs. I really think he should get a buff. Here's some buffs that I have thought about. 1. Cages will slow the enemy 2. Add 1 more trip 3. Add 1 more cage 4...