Absolutely correct. EVERYTHING hinges on DarkSend working as advertised. Then getting the word out and beating Zerocoin to full implementation.
I can't reiterate it enough. If Zerocoin/cash whatever it is halfway has it's act together, DRK will not be the "anonymous" coin. Another example, look at the second-coming of crypto, Ethereum. They gave some wonderful talks at some conferences and clearly understand the need to get the techno-mumbo-jumbo out to the public first... I don't know if Ethereum is anything, but you can bet if/when they ever launch it will get mass attention by investors, miners, etc. because of this perception of doing something "huge".