As I think fair volumes are the most important for any exchange. Maybe EOS can make it. Fast blockchain with smarcontracts and strong team can do it. But DEX idea is so strange. It contains freedom but it contain a high level for understanding how it works. And we can get ones more FD on the EOS. It's not bad but ones more?
That's correct, EOSex is already live 
EOSex is semi-decentralized due to the community. The efficiency of match trading system will not be influenced.