The key question is: would somebody who learned to use office after 2007 with the ribbon interface appreciate moving back to the pre-2007 interface?

My guess is that more people learned to use office after 2007 than before, so the majority of people have no problems using the ribbon.

I still yearn for ms-word on dos, and oracle forms on terminal interfaces, once you learned the keyboard shortcuts, nothing was faster. Kind of like knowing vi(m).