Reaper has a similar user unfriendliness in its mess of menus, but saves itself by virtue of the fact that it's only $60 (or free depending on how you look at it) and that it's incredibly customizable and you can trim away a lot of the scary stuff.
I think ease of use is really important these days and software design trends are headed along those lines. Kids are growing up with beautifully designed apps that are intuitive and efficient and they have certain expectations about how things should look and work. At one time I hated all this and thought "give me the geekiness and the complexity, I don't want any of this dumbed down crap" but I'm changing my mind about that now. I've come to realize that it's so much better to work in a clutter free environment without a million unused features, buttons and menu options screaming for your attention. I've gone all feng shui!
It's funny but I've heard loads of people on here express that "don't dumb things down, I like the complexity" attitude, but when you get into how most Sonar users work, they barely use a fraction of its features or power. My projects are often hardcore in terms of track count and complexity and yet I probably only use about 50% of Sonar's features, and from reading discussions on Facebook groups about how people use the program it seems that a large proportion of users make very light demands on Sonar, often never getting higher than 20-30 audio tracks with a few effects on each. Makes you wonder if they wouldn't have been better off with something far less complicated, I know I feel that way myself.