You're right. The idea of creating a hybrid crypto exchange is really new and unique. To date, such developments as far as I know are not in other projects. Exchange IEX can really be unique.
I also met with either decentralized exchanges or centralized (ordinary) exchanges. I hear about the hybrid for the first time. It will be very interesting to try!
To be honest it is the first time when I see hybrid exchanges. I think that it should be better then centralised. But we will see