From my research, it's truly decentralized, since the DEX itself will run on masternodes (same as Blocknet basically), with the exception that the DEX will be supporting Lightning transactions.

Lightning has seen a LOT of hate, and for obvious reasons, there is basically no incentive to run a BTC lightning node, since the fee's involved doesn't benefit the owner that much, however when you run it through a layer of masternodes (already making profit from block rewards), it only ads up as an "extra" income on top of it. Pretty smart!