what is the atomic exchange system, because in my opinion it is a new exchange system, even though you have found two weaknesses
Our exchange system is new. We take blockstream idea of sidechains and adopt it for exchange. Main weakness of all DEX based on bitshares that all traded coins stored by third party. So you need to trust them. In our system all traded coins locked in smart contract and no one can spend it even smart contract developers. Stored coins are only unlocked when they are withdrawn.