I'm just gonna reference the things I wrote on this post:
I my opinion, the current unlocking fee was too much for this cards and should be reduced and 2x of the collection power is what I think is the more appropriate price range for unlocking the Soulbound cards. This is because at its current unbinding price, the overall cost of a max Chaos Legion Soulbound set will be on par with the Rebellion core set while higher to the current market value of having a maxed Chaos Legion Core Set. At the same time, unbinding cards on its current price range involves a lot of risk if there is no demand for the card. Because of this, I can only see people to unbind their cards if they have secured a buyer that would cover the cost for them but that would make the transaction P2P rather than using the market. Also, because of the high Dec fee for unbinding, only few people might have the capability to burn enough Dec to unbind their cards and if the goal was to reduce the Dec supply in circulation, this might not achieved this due to the high Dec fee. Finally and my most major concern is how it will affect the onboarding of the new players if the amount of unbinded rewards are too few and very expensive as sellers would add the unbinding fee of the card to its price. I'm afraid that this would push away potential new players to the game at this rate. For now, I can only hope that the team would change their mind before the new set of rewards card will be released.