I think it's more because people are buying smaller wallets or card cases nowadays because of the mini/micro style. Whenever I see a thread about favorite slgs there's more people who also say that they are going away from wallets and using card cases just for the ease of it too. I have larger bags and alot of slgs but I tend to use only my card cases now vs actual wallets just because it's easier. With small kids and covid, it's just easier to pull out a card out of a card case vs having to unzip a wallet.
It's beautiful though !!!