Game's only been out a short while and already getting worse. Items in shop were all purchasable with coins then they locked a few behind diamonds. That was already a bad move. Now half the items are locked behind diamonds and those still purchasable with coins have gone up in cost.
If this is a sign of how the game will go I think I'm done with it. I get they need to make money but locking half your content behind a paywall is never the right way.
Won't be surprised if one day it's all locked behind diamonds.