Blender has the shortcuts and programming environment, but lacked the icons/tooltips in many cases. Many existing tooltips listed only what the button mapped to in the python environment.
Looking at Blender 2.79 right now, a comfortable 90% of icons, buttons etc have tooltips with useful (if terse) text. Some buttons are text instead of icons, but that's also true of Word.
I don't doubt Word is more discoverable, partly because of Microsoft's resources and partly because word processing is fundamentally more accessible than 3D modelling. But by the metrics you're talking about, Blender is maybe 75-90% as good. Which I don't think is the same as "discoverability almost doesn't exist".
> word processing is fundamentally more accessible than 3D modelling.
I'd strongly dispute the "fundamentally" part, though this may only be obvious when using a VR-native 3D modelling program rather than a desktop one.
But I don't really know what the equivalent of "just type some text" would be in Blender.