I very much agree with you. Some of the context menus are definitely not organized in an intuitive manner.
I don't typically use very many keyboard shortcuts in my workflows. However, I will say, for the few keyboard shortcuts that I do use, they are very handy.
In general, menus allow me to verify the operation I'm about to perform. Keyboard shortcuts don't allow for that. That's the main reason I use menus. (In fact, several times, I've caused mayhem when I was inadvertently pressing "shortcut keys" when I thought I was entering character data into an input box.)
Also, I consider myself more of a "casual" user of Sonar than a "professional" user. As such, I've not seen the necessity to optimize my workflow movements as much as some other users may require in order to meet demands.