A centralised exchange service is not required in theory and although it does sound like a simple solution, it also means having to trust a single third party to hold and secure the locked Omni Maid plus adds KYC honey pots on top. A much better solution is a decentralised method that can be verified as secure by anyone.
A more sustainable solution is to use one of the upcoming fully decentralised, and open sourced cross chain protocols. For example AnySwap running on the Fusion chain could be promising perhaps even more desirable than the Ren project method (which have committed to closed source algorithms for false sense of security)
