The UI is not ready yet, that's the main reason I guess.
But we will get there, it just a matter of time and having the resources to do it.
The most important thing is that we have now a very solid technological foundation for the GUI (web sockets + react.js), so it shouldn't take much time to make it similar to Poloniex or Yunbi.
Even if Cryptonomex doesn't do it, some other third-party company will take this opportunity having the financial incentive in the form of the referral program. 80% of the job has been done, this is the last 20% missing.
I agree with what you're saying, but after the trouble with the client in 1.0 we need to make sure it just works when launching 2.0. I think we should not have launched until it was done because the back end is amazing (i dont think they could have done a better job on that) but its looks like we cant get a decent front end finished in 1.0 or 2.0. I'm hoping this gets resolved quickly and moonstone have a decent looking alternative. Something that can compete with the professionalism of cryptsi for example.
Its a work in progress, but the launch implies its ready and clearly the GUI is not yet.
My 2 cents.