Scanning a list of words is much faster than tabs of differently sized icons. Having a choice of dockable and customisable toolbars made better sense, they achieved basically the same goal and could be tailored for the current task.
I hope no one at MS takes that idea seriously.
I like OneNote's new Simplified Ribbon as well, that you can toggle.
Sometimes you're in "understanding the codebase and tracing execution paths through tons of libraries you don't know" mode, sometimes you're in "debugging a specific problem with a specific function" mode, sometimes you're in "designing UI" mode, sometimes you're in "figuring out event propogation" mode, sometimes you're in "writing unit tests" mode, etc ... ...
In one version of outlook "delete" is a trashcan, in another its a big X.
Seems like ribbons are quite a divisive issue