EA does not want us to have coins.
Each big rewards at the end of a main event is untradable and you can only upgrade them when EA decides to give out universal rank up players. They have now introduced untradeables to packs and even the second most important event has UNTRADEABLE as its final reward.
This is a systematic elimitation of coins from the majority of the player base and gaining more control on what players can do in this game. Players should be more outraged because even the simple act of selling what you don’t need to buy what you want is removed from us and replaced by exchanges, which are basically packs.