It would have been better if supercell just knocked all our cards down a level

At least with level 15 you had to use a new currency to get it, meaning everyone advanced towards it at similar paces, no one had full level 15 decks within the first few days

All my hours of grinding for a couple of maxed decks are now obselete and there’s absolutely no hope in trying new decks as they’re now 2 levels below max. How can you just remove such a big feature so long after it has been implemente?