I know this issue has been beaten like a dead horse but thought I would drop this here. Some big powered lawyers behind this one. The article takes a slightly wrong take on this because it focuses on the buyer agent and not the listing agent. I think the listing side has a lot more fat on it based on the internet, new companies etc well discussed here.
https://www.cnn.com/2019/05/15/economy/real-estate-commissions/index.html
https://www.cnn.com/2019/05/15/economy/real-estate-commissions/index.html