Good news that there's finally an official dedicated server option. But, as I understand it, this really isn't something new? Whats new is the webgui control interface. We already had a "render3d = false" option (not sure if it worked in 2.5). And to be honest, I don't get why you make it unnecessarily difficult, still requiring an account to host. Easy is the key.
I think you should just make available a completely free "full package everything included" dedicated server package download that is not "playable". This will only benefit the community. To actually play you would still need a purchased client.