That may be the other thing. Apps have gotten a lot bigger on average. How many shortcuts are really consistent across applications? A dozen? That might have been half of the shortcuts 20 years ago. Now that’s a quarter and nobody bothered creating bindings for half of the menu entries.
Hell, Outlook gets it wrong and MS used to harp on this loudly. I can’t count how many new folders I’ve created while trying to start an email.
* How do these shortcuts remain consistent between applications?
* What's a system wide, task-type-wide, and program specific action?
* How do these persist across different versions of OS, application, devices, different ownership (work / home / etc), or otherwise follow the user?
* "X is broken" use the shortcut... wait what did you configure that as?