Your crypt is built on the basis of Ethereum, I understand the advantages in a large audience and developed software, but what if Buterin will change the rules? I saw on the news there were some plans.
We took into account the possible risks and developed Wallet-server a separate service to communicate with current servers, it works as a bridge between Json RPC API Ethereum and our API. Wallet-server allows you to protect your current integrations from abrupt changes in the Ethereum system.