History is full of failures where they did almost exactly that, just without the "re" in front of "training". The creation of that weird MS Office toolbar thing for example must have consumed a large fraction of the last remaining blank slate non-users in the experiments that led to it's design.
For me the ribbon is completely stupid as you have to constantly click 2 times for the features you want to go from one toolbar to another.
And worse, you often have to click through multiple of them just to find the function that you are looking for. It is even more difficult as each one will have its buttons of random size, aspect and randomly placed.
Funnily enough, I just installed windows 10 on a old computer for somebody, and the new office online that's installed defaults to "ribbon simplified" view which looks like the old office before ribbon
