Yes you are right.
In my opinion, the upcoming release of all these new Dex UI’s is nearing. This will allow for trade pairings from any coin to any coin. It will diminish the dependency somewhat, especially after Dexes create their SPV and web wallet applications for fast trades, which IMO will pull a massive amount of volume away from the Cexes.
The race for a new medium of exchange will take shape. Bitcoin is out the window for Dexes because of it’s extremely high tx fees and extremely slow to transfer. Don’t get me wrong… it will still be a great way to trade Bitcoin securely especially for the high level transactions.
Cexes use an IOU system so their is no tx fee associated for trading other than what they charge in commission.
I think after the release of BitBay’s dynamic peg, we will become that new medium of exchange for all Dexes. It’s going to be so interesting to see that unfold in the coming months.