[geeko]

" Watch how they have memorized all the shortcuts and quirks of their custom line-of-business apps. You'll discover a class of users who want power and control, not simplicity and ease-of-use."

Doesn't "quirks" already imply that it's non-optimal? Shouldn't we think of applications and user interfaces which don't make someone remembering all shortcuts a "professional"? As stated by others before, simplicity and ease of use aren't strongly correlated to power and control.