Can you please expand on this? I'd say you're wrong, but I'm not quite sure I really understand what you mean.
http://stackoverflow.com/questions/3109847/is-there-any-onli...
That's from 4 years ago, and the latest answer from over a year ago; I wouldn't be surprised if the situation were better now.
I don't know about you but I find that I do 99.99% of my work on one of my machines (where I have control over what's installed and what is not).
So the issue for me is not if I can access the editor from remote, but if I can access/sync the data. (which dropbox solves for me).