I have gotten 97500 oil from my victory chests over the last 9 days and 32500 oil since the changes. I don't see why everyone is complaining. I think you might get more desirable options the higher medals count you get, as well as in higher quantity. If your medal count is below Kingdom league you really don't deserve to be getting higher tier rewards, that is the sacrifice you guys make for throwing away medals to get easier opponents and more loot. You have to pick and choose between better victory chests or more loot/easier opponents. You can't have the best of both worlds.
Your Victory Chest rewards are related to your League. Be sure to stay in Gold or above for the chance to see National Trade Goods in your Victory Chest!