You should probably look into some of the features Cloak has coming up. It doesn't need to be accepted anywhere.
You are assuming OneMarket will work and people decide to actually use it. It is a lot of ifs. A problem I see with OneMarket is people need CLOAK to participate. What if you don't feel like going out and buying CLOAK? It's a hurdle to adoption, and it could be a nonstarter for many people.
If you don't feel like going out and buying Cloak, then you were never really ever going to be a part of the market anyway...
"What if you don't feel like going out and buying BTC? It's a hurdle to adoption, and it could be a nonstarter for many people."