Keyboard shortcuts are great--take that with a grain of salt since I like vim too. Unfortunately, the emphasis of Word has always been to make it so a new user can manage to do those things by browsing around the menus and toolbars. It's not a good habit to learn as far as productivity goes, but I'm sure it scores well in usability labs where subjects have no training and an hour to do some simple tasks.

Word's problem is that it has evolved so many features that there is NO reasonable interface to access them. I have been using Word for two decades and still I find myself resorting to features like the Format Painter because I cannot find the settings to fix a run of text.