YOU SHALL NOT PASS!
As a person that already spent (and is still spending) a lot of money in the game, I've said many times that if Rebellion packs are not distributed in reward chests, I'll sell all my assets and leave the game for good because it will be the last strawl.
Rewards are what make the game exciting, and we buy assets, rent SPS, try out best to know the meta and enhance our skills, just in order to get the greatest number of chests possible every day/season. And that's because the act of open reward chests is awesome! Now, just put in mind the outrage you are proposing. You propose to take out of the rewards chests, exactly the item that's more exciting to get.
This is maybe, the worst proposal I've ever seen regarding the interest of players. Remember guys, the game MUST be EXCITING and rewards are a BIG PART of the game!
You have to try to increase the player base, but most of all, do not kill the current players, especially the ones that have been faithful to the game and have been playing for so long!